V-Tool - Parting Tool

identity

• name — Tool 1, the carving V-tool: also called a V-parting tool or, within carving specifically, simply a "parting tool" [VP1][VP2]. A hand carving tool built from two flat bevel facets meeting at a sharp point, forming a V-shaped cross-section — mechanically two chisels joined at an angle, not a single curved cutting edge. This corpus's own Gouge entry already establishes this as a sourced fact: "mechanically a pair of flat bevel facets meeting at a point, not a single continuously curved edge... sourced explicitly as a cousin, not a member, of the gouge family" [GO-cross].
• name — Tool 2, the turner's parting tool: a lathe hand tool, cross-section diamond, rectangular, or fluted, used to cut a groove to a target diameter and sever ("part off") a finished turned piece from waste stock or the lathe centers [VP3]. No source located ties this tool's name to "V-tool" at all — turners do not call it a V-tool.
• the collision, directly sourced (paraphrase, with short exact phrases attributed separately): TATHS calls the carving profile "the V or parting tool" [VP2]. BeaverCraft's glossary likewise lists "parting tool" as an alias for the carving V-tool [VP1]. A Woodcarving Illustrated forum thread shows the live confusion: one participant says the two carving terms are the same, while another says they had only heard "parting tool" used in turning, for a straight tool with a carbide tip [VP1]. These are separate statements from separate sources, not one quotation.
• family / category: Tool 1 sits in the Chisel/Gouge family as a documented non-member cousin (see Gouge) [GO-cross]. Tool 2 sits in the Lathe Tool family alongside the roughing gouge, spindle/bowl gouge, skew chisel, and scraper — all five appear together as the standard turning kit in this corpus's own Robert Sorby ProEdge (Belt-Based Edge-Tool Sharpening System) entry, which lists "parting tools" among the tool classes that system sharpens [PE-cross].
• one-line: two tools, one name, two trades — the carving version cuts a V-groove into static wood by hand; the turning version cuts a reference groove and severs a spinning workpiece on a lathe, and neither can do the other's job.
• etymology — an honest, named gap. Gouge's own entry states the carving V-tool's name "is borrowed from the turner's parting tool" [GO-cross], but this run's research found no primary source confirming that direction of borrowing, or dating when it happened. The collision's existence is well sourced (see above); its origin story is not. Carried as an open gap rather than invented.

✦ how NOT to use it

Tool 1 — the carving V-tool

• not-for: flat-surface waste removal or rounding/hollowing — a gouge's job, not this tool's; substituting for the lathe parting tool, or vice versa (see lineage-misuse).
• dangerous: hands and fingers in front of or beside the blade path, most commonly when one hand braces the workpiece and the other pushes hard and the tool slips [VP20]. Controls (general carving practice, cited as such; no V-tool-specific source was read in this pass): secure or positively control the work; keep hands and body out of the projected edge path; anchor the controlling hand; make controlled cuts rather than putting body weight behind the tool; inspect the edge, tang, ferrule and handle; protect the edge in storage; use eye protection where chips or striking create a hazard [manual, relayed]. Pye's booklet is a sharpening source, not a complete carving-safety source; his stropping instructions warn to keep the supporting hand clear of the returning tool path [manual, relayed]. No V-tool-specific injury account was located; that is a search result, not evidence the tool is safe [VP-gap].
• damaging: Pye names this directly — small V-tools are "oversharpened very quickly and easily... because so little metal must be removed," meaning careless honing can shorten a small V-tool's working life fast [VP13]. On winged variants, the protruding corners "will foul and mark" adjacent surfaces (e.g. the edge of an adjacent carved leaf) if applied outside the technique they were designed for [VP13].
• beginner-trap: Pye names this directly too — "The main problem beginners have is how to hold these, sometimes awkwardly, shaped tools, and present them accurately to the benchstone or grinder" [VP13]. TATHS independently confirms the V-tool is one of the hardest carving tools to sharpen correctly: "One of the most difficult to sharpen is the V-tool which should be treated as two flat chisels and the intersection of the V as a tiny gouge" [VP2] — sharpening only one facet, or leaving the apex blunt, or sharpening the outside keel into a knife-like longitudinal ridge, makes the tool fail to cut the groove bottom or track and catch instead of steering [VP13] [manual, relayed].
• lineage-misuse: treating the V-tool like a single-bevel gouge (honing only one face, ignoring the keel bevel) destroys its cutting geometry. And, directly following from the naming collision this entry documents: a carver arriving expecting a V-shaped groove tool and being handed (or ordering) a turner's flat- or diamond-section parting tool — or a turner expecting a lathe tool and being handed a carving V-tool — is a real, sourced confusion risk, not a hypothetical one [VP1].

Tool 2 — the turner's parting tool

• not-for: shaping or hollowing work (a gouge's job). Grain orientation is a condition to match, not a blanket ban (see matching).
• dangerous — interacting hazards, not a ranking. Catches, kerf binding, ejection, entanglement, workholding failure and contact with rotating stock interact; no comparative evidence was found to call any one the tool's "primary" hazard. Controls from the direct authorities [VP23][VP24]:
  • training: only people who have shown competence should work on a lathe [VP24].
  • workholding and preparation: a sound, correctly mounted workpiece; spurred drive centre for a firmer grip; face plates for large or heavy pieces; surplus timber removed from square stock before turning. HSE: "Ejected workpieces are one of the main causes of accident during hand turning," from inadequate support, poor preparation, excessive speed and blunt tools [VP24].
  • speed: check speed before starting; slower for large, rough or irregular work; if the work vibrates, stop and find the cause [VP23][VP24].
  • hand rotation: turn the piece by hand to confirm it clears the rest and bed and is firmly mounted before switching on [VP23].
  • rest: locking devices tight; rest close to the wood; edge on the centre line; recheck as material is removed; stop the lathe before adjusting the rest [VP23][VP24].
  • line of fire: stay out of the area directly in front of and behind the workpiece when switching on [VP23].
  • face and eye protection: a full face shield whenever the lathe is on [VP23]; eye protection and ear defenders per HSE [VP24].
  • entanglement: no gloves, loose clothing at wrists and arms, jewellery or watches; long hair tied back or covered [VP23][VP24].
  • deep kerf: a narrow parting tool is susceptible to side binding in a deep kerf; keep it supported, withdraw it periodically and widen or clear the kerf as the exact tool and operation require (relayed AAW guidance on widening cuts deeper than 1/2 inch) [manual, relayed] [VP25].
  • release of the finished part: decide before cutting where the freed piece will go, how it is supported, and whether to stop short and finish with the lathe off; tailstock pressure, work size, chuck or waste-block geometry all bear on this [manual, relayed]. Do not part fully free under power as a default.
  • calipers: the caliper gate in matching applies. "Calipers" alone is not a safe accessory recommendation around rotating work.
• damaging: an AAW forum poster reports wood "burned black" on either side of a ¼" parting tool while parting [VP14] (practitioner texture). A catch can also snap the tool or blow out a torn groove, especially in green or figured wood (unsourced; reasoned inference).
• beginner-trap: parting too deep or too fast without periodically backing out to clear the kerf increases binding and catch risk. The diamond-section tool's tapered profile is designed to reduce binding, though one experienced-turner forum voice cautions the practical difference narrows once a cut runs an inch or more deep [VP9].
• lineage-misuse: expecting this tool to do what the carving V-tool does (or vice versa) is the concrete shop form of this entry's naming-collision finding [VP1]. Do not treat a parting tool as a skew chisel; presentation depends on the exact profile and grind and on competent instruction for that tool.

correct use

Tool 1 — the carving V-tool

• what it's genuinely good at: cutting a clean, symmetrical V-section groove by hand into static wood — incising outlines before relief carving begins ("setting in"), carving lettering, and cutting decorative linear detail.
• how to use it well — the short version. The two side bevels are sharpened as a matched pair, not independently, or the V's symmetry (and the resulting line) drifts; the outside keel is kept smooth and slightly rounded along its length so the tool steers through curves, while the apex is honed keen [VP13].
• a V-tool makes a V-section groove; a gouge makes a continuous curved or swept section. A V-tool can follow a curved path, but its groove keeps the V section.

Tool 2 — the turner's parting tool

• what it's genuinely good at: sizing a spindle to a diameter, producing a shoulder or narrow channel, and, where the workholding and project permit, parting off [VP25] [manual, relayed].
• how to use it well — the short version. A conventional double-bevel parting tool is commonly presented on the rest for a controlled scraping cut; other profiles may permit peeling or shear cuts when taught for that exact tool. Keep the tool supported, withdraw it periodically, and widen a deep kerf as required so the sides do not bind. AAW's beginner curriculum is relayed (not read here) as saying general-purpose parting tools usually produce a scraping cut and that cuts deeper than 1/2 inch should be widened slightly to prevent binding [manual, relayed] [VP25]. Follow the tool maker and competent woodturning instruction for height and presentation. Diamond-section and fluted variants are designed to reduce side friction in the cut, which does not remove the need for the controls in how NOT to use it [VP8][VP10].
• measuring. Set the target with appropriate outside calipers. The default safe match is to stop the lathe to measure. See the caliper gate in matching and how NOT to use it.

✦ matching — for the app's read

Tool 1 — the carving V-tool

• does: incises V-section grooves; outlines a carving design's boundary before relief work begins (setting-in); carves lettering and fine linear detail; a fishtail-profile V-tool additionally clears broader background material in relief work [VP-search].
• suits: relief carving (the outlining/setting-in stage, before gouges remove background); letter and sign carving; decorative incised line work on flat or gently curved surfaces.
• kit-fit:
  • pairs with: carving gouges — the V-tool sets in an outline the gouges then relieve around [GO-cross] — and, for a mallet-rated tool only, a carver's mallet, or a push/hand grip for fine detail; a Slip Stone with a knife-edge/tapered profile for sharpening the acute inside corner the V's apex forms, which a flat stone or round-edge slip stone may not reach [SS-cross].
  • substitutes for: in a pinch, a narrow bench chisel angled into the cut can approximate a shallow V-groove, but is unlikely to match the tool's symmetrical two-facet channel — this is reasoned inference from the corpus's general chisel-vs-curved-tool logic, not independently sourced for the V-tool specifically this run [VP-gap].
  • cannot replace: a gouge, which makes a continuous curved or swept section where a V-tool makes a V-section groove [GO-cross]; cannot substitute for the turner's parting tool despite the shared name — different trade, different mechanism, different machine context (see lineage-misuse, below).
• not-for (project-keyed): flat-surface waste removal (a carving gouge's job); rounding or hollowing (any gouge's job); do not expect this tool, or ask for it by name, when what's actually needed is the lathe parting tool — the naming collision is real and documented (see identity) [VP1].
• access: carving is static-work hand-tool work: see the carving controls under how NOT to use it. No V-tool-specific injury account was located; that is a search result, not a risk assessment, and the controls below stand regardless [VP-gap].
• mallet use: match mallet work only to a V-tool and handle built for striking; do not pair a generic V-tool with a mallet merely because some carving V-tools are mallet-rated [manual, relayed].
• revival: a genuinely humble, single-purpose tool that earns its keep at the very first stage of relief carving — before a single curved cut is made, the V-tool has already decided where the whole piece's design lives on the wood.

Tool 2 — the turner's parting tool

• does: cuts a reference-diameter groove; cuts a shoulder marking the boundary between sections of a spindle; cuts a narrow channel; separates work under a defined mounting and release plan; a beading-and-parting hybrid additionally forms decorative beads. Operations are matched separately below, because grain direction alone does not decide whether a cut is safe; workholding, support, diameter, balance, cut location and the behaviour of the freed part do.
• operation: spindle sizing and grooving (work rotating, supported): sized with calipers under the caliper gate below.
• operation: separating sections in chuck-held spindle work: needs the work supported appropriately, a non-pinching cut, and a known destination for the released section.
• operation: base or waste-block removal (bowl and faceplate work): the cut separates wood at the tenon, waste block or chosen junction, not through the chuck itself. Needs a plan for the released piece and its fall.
• final separation is a setup-specific decision, not a default. Support the work appropriately, avoid a pinched cut (tailstock pressure can pinch a parting cut [manual, relayed]), know where the released part will go, and where prudent stop short and finish with the lathe off using a saw or carving tool. Never imply that every between-centres or bowl setup should be cut completely free under power.
• suits: spindle turning (marking section boundaries, sizing to a target diameter); small-diameter work where a controlled separation matters, with the release plan above; the tool is also standard beginner kit per AAW forum material [VP19] (practitioner texture, not a safety recommendation).
• caliper gate (match field measurement_method): the default safe match is to stop the lathe to measure. Applying calipers to rotating work is an advanced, conditional technique limited to suitable rounded-tip outside calipers, smooth continuous stock, correct approach and competent instruction; never apply vernier, dial, digital, sharp-tip or snag-prone calipers to spinning work. Rough, interrupted or square sections require the lathe off. Source disagreement, stated: the AAW Caliper to Dimension article (summary read in this pass) says to round or grind off sharp caliper tips so they do not catch, and says any caliper style, including an inexpensive vernier, can be used, alternating cutting and gauging with the tool withdrawn [VP26]; the reviewer relays AAW material that sharp-ended metalworking calipers can catch and be thrown and that vernier, dial and digital calipers are applied with the lathe off [manual, relayed] [VP27]. This entry takes the stricter reading.
• kit-fit:
  • pairs with: a roughing gouge (rounds the blank before the parting tool defines sections), appropriate outside calipers used under the gate above, and a skew chisel for finish work on the same spindle.
  • substitutes for: a bedan overlaps in some operations [VP12]; forum discussion alone does not make it an automatic safe substitute.
  • cannot replace: a spindle or bowl gouge for shaping or hollowing — the parting tool has no curved shaping geometry; cannot substitute for the carving V-tool despite the shared name. (The bowl gouge now has its own file, Run 657 — Bowl Gouge.)
• conditions, not a prohibition (replaces the old "not-for: cross-grain"): AAW forum material says the tool "does not cut cross grain well, usually leaving tear out" [VP18], a finish-quality remark from a forum poster. AAW publishes faceplate/bowl and spindle projects that use parting tools in different grain orientations [manual, relayed], so grain orientation is a match field, not a universal ban. Shaping or hollowing remains a gouge's job.
• access — controls from direct authorities (see how NOT to use it for the full list). Competent instruction, a sound and correctly mounted workpiece, suitable speed, tool rest close and locked, full face protection, no entanglement hazards, and the lathe stopped before adjusting the rest [VP23][VP24]. Forum catch accounts (for example "the deeper you go, the more likely it is going to catch on the sides" [VP19]) are practitioner texture only.
• revival: the tool that turns "I think this is done" into a checked fact: a narrow tool for sizing, shoulders, grooves and, with a sound plan, separation.

anatomy

Tool 1 — the carving V-tool

• the two flats/facets — the pair of flat bevel surfaces that meet to form the V; this is the tool's defining, corpus-confirmed distinguishing feature versus a gouge's single curved edge [GO-cross].
• apex — the cutting point where the facets meet, sharpened keen [VP13]. The V-channel root and outside keel are rounded in Pye's model; "two chisels joined together" is a teaching model, not a full cross-sectional description.
• keel — the narrow third (keel) bevel on the outside of the V where the two side bevels meet. Its longitudinal shape is smooth and slightly rounded so the tool can steer through curves; its terminal apex is honed keen so it cuts the bottom of the groove. Both the rounded steering geometry and the sharp cutting apex are preserved [VP13].
• included angle — the angle of the V at the apex; manufacturer-confirmed standard angles are 45°, 60°, and 90°, with 60° described by Pye as "most commonly used by woodcarvers" [VP13][VP16].
• wings/corners — the two outer edges of the V; on a "winged" variant these protrude past the apex (see human side, Finnish acanthus work) [VP13].
• tang and handle — tang-mounted into a wooden (commonly beech, per Ashley Iles) handle, the same mounting pattern this corpus's Gouge entry documents for carving gouges generally [GO-cross][VP16].
• width — sized like gouge sweeps, in fractional inches/mm; Ashley Iles' own current size range runs 1/16" (1.5mm) through 1" (25mm) [VP16].

Tool 2 — the turner's parting tool

• cross-section — the primary design axis. Diamond-section (narrow at top and bottom, widest at the middle — tapered for side clearance to reduce binding as the cut deepens) [VP9][VP8]; rectangular/square-section (the traditional form, more prone to binding and burning as the cut deepens) [VP9]; fluted (a ground flute; construction varies by maker model, see lineage) [VP10].
• blade width — commonly ⅛" and 3/16" across the manufacturer listings checked this run; 1/16" ("thin"/"slim") and ¼"–3/8" (beading/parting hybrid) variants also exist [VP17][VP11].
• tang/handle — tang-mounted into a handle (ash, per Robert Sorby's own spec) with a brass ferrule; Sorby's product-page spec for its Diamond Section Parting Tool gives a ³⁄₁₆" (5mm) HSS blade, 10" handle, 17" overall handled length [VP8].

variations (living)

Tool 1 — the carving V-tool, market snapshot (July 2026; prices and availability are volatile and were not re-checked on 2026-10-16; remove or re-date before use in matching)

Tool 2 — the turner's parting tool, market snapshot (July 2026; same caveat; currencies differ; manufacturer and retailer prices are not distinguished in the original; search-synthesis rows were never opened directly)

Note on market breadth: both tools are made by Sheffield-anchored firms (Ashley Iles, Henry Taylor, Robert Sorby). Company founding dates are company history only and do not show continuous production of either tool since founding.

trades

• Wood carving — relief carving, letter/sign carving, decorative line work; the V-tool sold and numbered alongside gouge sets in every major carving-tool catalog checked this run (Ashley Iles, Pfeil, Henry Taylor) [VP16][VP-search].
• Woodturning — spindle and bowl turning; the parting tool appears in a beginner kit recommendation alongside a roughing gouge and spindle/bowl gouge in AAW forum material [VP19], and appears in this corpus's own Robert Sorby ProEdge (Belt-Based Edge-Tool Sharpening System) entry as one of the tool classes that sharpening system maintains [PE-cross].
• Sheffield toolmaking — both tools are currently made by Sheffield-anchored firms (Ashley Iles, Henry Taylor, Robert Sorby); the tools are not mechanically interchangeable.

lineage

Tool 1 — the carving V-tool

• ancestors: no dated, named-inventor origin was located. Retailer blog claims of "ancient" or "medieval" V-tool use (e.g. STRYI's "The history and evolution of V-parting tools in woodworking") cite no primary sources or artifacts and are treated as unverified marketing copy, not history [VP4]. TATHS notes that most surviving old carving tools date from the second half of the nineteenth century onward, and that earlier tools are thought to have been sharpened away — a general survival observation about carving tools, not a V-tool-specific claim and not proof that no earlier V-tools existed [VP2].
• standardization: British carving tools including V-tools are numbered per the Sheffield List, an industry numbering standard (a dated list or catalogue source for when it was codified was not located in this pass); V-tools occupy numbers #39–46 (covering 45°/60°/90° straight and curved variants) [VP5]. Pfeil deviates with its own #12–16 numbering for the same angle range [VP5][VP-search]. The dedicated number range shows V-tools were a standard catalogued category once the List was in use; the List's date was not established here.
• contemporaries: the flat bench chisel and the U-shaped gouge — TATHS frames all three (flat chisel, gouge, V/parting tool) as carving's three basic edge profiles, with the V-tool the third leg of that stool, not a hybrid or afterthought [VP2].
• Japan, present-day existence only: a modern Japanese V-grooving carving chisel is sold as a sankaku-nomi (triangular-section), and the consulted product and trade sources document its current form and laminated construction (soft-steel body, hardened high-carbon edge) [VP6]. This review found no evidence establishing its date of origin or its relationship to European V-tools; no independence and no borrowing is inferred.
• descendants: the winged V-tool, a variant with corners that protrude past the apex — see human side below for its documented Finnish use.

Tool 2 — the turner's parting tool

• ancestors — the lathe itself, deep and well-dated, independent of this specific tool. A trade-press history article (secondary source; the archaeological and manuscript evidence was not inspected) gives a two-person bow/strap lathe in ancient Egypt, circa 1300 BC, and a foot-powered spring-pole lathe depicted in the Bible of St. Louis manuscript, circa 1226–1234 [VP7]; treat these dates as secondary-source history, not settled. The same article lists Joseph Moxon (1678), Charles Plumier (1701), André Roubo (1774) and Peter Nicholson (1812) as lathe literature [VP7]; this establishes lathe literature, not the named appearance of a woodturning parting tool, since the relevant passages were not inspected. No source isolates the parting tool specifically as a named, dated invention distinct from this general early-lathe-tool record — it appears to be one of a small basic set of turning tool forms (gouge, skew, parting tool, scraper) whose individual origin as a distinct named tool this run's research could not separately pin down. Named as an honest gap rather than assigned a false date.
• a related medieval manuscript reference (1425 German craftsmen's house book) surfaced only via a search-engine summary and could not be independently verified against a primary or scholarly source this run — flagged as needs-verification, not carried as a confirmed fact [VP-gap].
• a bounded manufacturer claim about the diamond-section variant. Robert Sorby's product copy for its Diamond Section Parting Tool (model 831) states, "The special profile of this tool reduces the risk of binding in the cut. It also reduces the amount of heat build up caused by friction, thereby lessening the chance of burning the bottom of the parted off project" [VP8]. That is a claim that this model's profile reduces binding and heat; it does not say either is eliminated, and it does not show that the diamond section historically descended from a specific rectangular predecessor, or give an inventor or date. A Sawmill Creek forum thread on "Diamond parting tool vs. Standard parting tool?" discusses the same friction and binding logic, while one experienced-turner voice pushes back that the practical difference is smaller than marketing implies once a cut goes an inch or more deep [VP9]; both are kept, unresolved.
• descendants / variants: the fluted parting tool — described in retailer and manufacturer copy as a flute ground into the blade for a cleaner cut with reduced binding [VP10]. The earlier "two sharp spurs" account is withdrawn: The reviewer found the Sorby catalogue describes its slim fluted model (832) as having a long bevel/flute as the cutting face and a small sharpening bevel giving a 45° shear, and does not support a generic two-spur description for all fluted tools [manual, relayed]. Grinds and presentations of standard, diamond, thin, fluted, beading-and-parting and carbide-insert forms are not interchangeable. The "beading and parting tool" — a compound/dual-use tool, narrow and double-beveled, that both parts stock and forms decorative beads, a compound tool listed by retailers [VP11]; no historical lineage is claimed.
• contemporaries: the bedan, an adjacent turning tool with overlap in some operations in AAW forum material [VP12]; forum discussion alone does not define a safe automatic substitute.

The Petroski lens, held apart for each tool (kept as reasoned inference)

• Tool 1 (carving V-tool): no source directly frames the V-tool's invention as a failure-fix. The plausible mechanical case — that a single knife or straight chisel struggles to hold a clean, consistent line around curves, while the V-tool's two-bevel-plus-rounded-keel geometry "negotiates corners smoothly" (see Chris Pye, below) — is Haft's own structural reading of Pye's technical description, not a directly cited failure narrative. Flagged as reasoned inference, consistent with how this corpus treats similar cases (e.g. Straightedge's Whitworth framing) [VP13].
• Tool 2 (turner's parting tool): the manufacturer copy above states the binding and heat problem this model's profile is designed to reduce [VP8]; it is a design-performance claim for model 831, not a history of the diamond section.

✦ human side

Tool 1 — the carving V-tool

• Chris Pye — a named, well-documented master carver, author (Fox Chapel Publishing's Wood Carving: Projects and Techniques), and teacher (woodcarvingworkshops.tv). His technical booklet "Selecting and Sharpening Your V Tool" (©2006) is this entry's richest primary source for the carving side, supplying the tool's own anatomy vocabulary directly in his words: the V channel (the triangular hollow between the two bevels, through which the shaving exits), the apex (the cutting point), and the keel. In Pye's model the two side bevels meet a third, narrow keel bevel; the outside keel is smooth and slightly rounded along its length, and "This softening of the keel allows the tool to negotiate corners smoothly" [VP13]. He also sets the keel to the cutting angle and hones the apex through the keel until the spot of light disappears, so the cutting apex is keen while the outside keel stays rounded for steering [VP13] (per the reviewer's reading of the booklet [manual, relayed]).
• a named, sourced cross-cultural technique — Finnish acanthus carving. Pye names "winged" V tools (corners that protrude past the apex) as the tool of choice for "all the master carvers" in Finland specifically, for the long, shallow, traditional decorative grooves of Finnish acanthus-leaf carving [VP13] — a real, dated-to-a-living-tradition cross-cultural note, not a generic claim.
• the naming collision, confirmed from the practitioner side. The Woodcarving Illustrated forum thread quoted in identity above is itself a real, named community exchange in which carvers work out for each other, in plain language, that "parting tool" means one thing to a carver and a completely different thing to a turner [VP1].

Tool 2 — the turner's parting tool

• Richard Raffan — a named, internationally known professional turner (Canberra, Australia, active since the mid-1970s) whose books, DVDs, and YouTube channel cover standard turning tools including the parting tool. This run could not retrieve a directly quotable passage of his parting-tool technique despite confirming he is a real, citable authority with material that exists (richardraffan.com.au) — an honest access gap, not a claim that his material doesn't exist [VP-gap].
• AAW forum threads, practitioner texture only. A "Parting tool problem" thread has a turner reporting wood "burned black" on either side of a ¼" parting tool while parting [VP14]. This is a first-person forum account, not a safety authority. Safety rules for this tool are rebuilt from AAW's woodturning safety recommendations and HSE WIS28 in the safety sections below [VP23][VP24].

✦ proof of existence

• Tool 1 — catalog evidence, bounded. The Smithsonian National Museum of American History catalogs at least two "parting tool" objects attributed to S.J. Addis, an English carving-tool maker (TATHS: "Some of the best and still sought after for use"), classified under "Chisel; Parting Tool; Woodcarver; Woodworking; Slicing Tools; Hand Tools," part of accession 266148 (object nmah_653143, ID MC.266148.032, 19.2 cm overall; a second record at nmah_653142) [VP21][VP2]. This corroborates the carving use of "parting tool" in a museum catalog. It does not settle which trade owns the name, and the accession number is not a manufacture date: the entry gives no object date. The live record was not retrievable in the review or re-fetched in this pass; confirm object name, maker attribution, classification, object date (if present) and accession date as separate fields before relying on it.
• Tool 2 — patents: bounded search result. No category-originating patent was located in the searches described here. That absence is not used to date the tool. Industrial metal-turning homonym note: US7419337B2 ("Parting blade for turning purposes") is a modern metal-turning insert design, irrelevant to the woodturning hand tool, and is listed only to prevent confusion [VP22].
• manufacturer founding dates, company history only: Robert Sorby, 1828, Sheffield [VP8]; Henry Taylor, 1834, Sheffield [VP2][VP-search]; Ashley Iles, 1948 per the firm's official history (the original said 1949; corrected) [VP16]; Pfeil, 1902 in Switzerland, carving-tool production from 1942 [VP-search]. These dates show when firms started, not when each began making a V-tool or parting tool; continuity of a product category would need dated catalogues.
• standardization proof, Tool 1 only: the Sheffield List's dedicated multi-number range for V-tools (#39–46, covering three standard angles in straight and curved forms) is itself evidence the category was mature and standardized enough to warrant systematic numbering by the time the List was codified [VP5].

references

schema (matching control, added in the 2026-10-16 fix pass)

• matchable: false on this combined record. It may not emit a project match, shopping result, sharpening setup, safety block or substitute.
• Tool 1 identity for a future split entry: V-Tool (Carving), discipline: carving, work_rotates: false. Fields wanted: profile angle, width, edge shape (square/winged/nosed), longitudinal form (straight/bent/fishtail), impact rating of the exact handle and blade, workholding, operation, grain direction, sharpening profile.
• Tool 2 identity for a future split entry: Parting Tool (Woodturning), discipline: woodturning, work_rotates: true. Fields wanted: section (standard/diamond/thin/fluted/beading-parting/carbide), width, grind and presentation, cut depth, workholding, grain orientation, operation (sizing/grooving/shoulder/separation), release plan, rest/PPE/training, measurement method.
• The split into two files is a decision for Haft or Jonathan and is not done in this copy.

The reviewer's corrections (12)

• BLOCKER — 1. Split the two operational identities or make the combined record non-selectable — Exact claim: tool: V-Tool (Carving) & Parting Tool (Turning) and “this entry documents TWO tools, not one.”
• BLOCKER — 2. Remove the false OSHA cross-reference and rebuild turning safety from direct authorities — Exact claim: “This sourcing is forum-tier, not anchored to a safety authority the way Gouge's own OSHA-sourced turning-danger claim is,” repeated in the open gaps and confidence rationale.
• BLOCKER — 3. Correct the basic cutting presentation and deep-cut control — Exact claim: “Presented bevel-rubbing against the spinning workpiece like other edge tools on the lathe.”
• BLOCKER — 4. Replace the cross-grain ban and generic full-severing advice with setup-specific matching — Exact claim: The tool “sever[s] a finished turned piece ... from the lathe centers,” “suits ... freeing a finished bowl or spindle piece from the chuck or a waste block,” but is “not-for: cross-grain cutting.”
• BLOCKER — 5. Add caliper type and contact conditions to the sizing match — Exact claim: The tool is “paired with calipers (checked continuously as the parting cut deepens).”
• SHOULD-FIX — 6. Make the V-tool keel description mechanically complete — Exact claim: The keel is a “rounded (deliberately not sharp) ridge” and “deliberately left un-sharpened.”
• SHOULD-FIX — 7. Unbundle the composite quotation and attribute each statement accurately — Exact claim: The long italic quotation beginning “In wood carving, the two terms ‘V’ and ‘Parting Tool’ are used interchangeably...” and ending with the carbide-tip turning-tool example, attributed jointly to a forum thread and BeaverCraft.
• SHOULD-FIX — 8. Remove the unsupported Japanese “parallel invention” conclusion — Exact claim: “Japan has an independent V-shaped carving chisel tradition ... documented here as a parallel invention, not a borrowing in either direction.”
• SHOULD-FIX — 9. Stop treating absence of a patent as evidence of ancient/traditional origin — Exact claim: “No foundational patent, and that itself is informative ... consistent with it being one of the ancient/traditional basic lathe-tool forms.”
• SHOULD-FIX — 10. Narrow the Smithsonian and manufacturer-continuity claims — Exact claim: The Smithsonian object is “a real, dated ... physical object” that “settles” which trade owns the name, and current makers' founding dates are “category-maturity evidence” and “institutional-continuity proof.”
• MINOR — 11. Correct current manufacturer facts and time-stamp market data — Exact claim: “Ashley Iles (Sheffield, founded 1949)” and prices stated as current market facts.
• MINOR — 12. Remove rhetorical universals that exceed the evidence — Exact claim: The tools “share a name and nothing else”; “every spindle-turning project eventually needs a piece freed from the lathe, and this is the tool that does it”; and the V-tool “cannot reproduce” any concave or curved cut.