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Scratch Stock

CorrectedAn independent reviewer read this entry and found corrections. They have been applied to the text, and the reviewer re-checked the correction that mattered most for safety and found it done; the others have not been re-checked yet. The list at the end is the record of what changed.

identity

⚠ Naming collisions and boundary cases — checked and flagged, not conflated. The Stanley No. 66 and the current Lie-Nielsen derivative are two-handled fenced beading tools using interchangeable flat profile cutters. Lie-Nielsen's current page and 2023 manual describe seven separate double-ended flat profile blades giving fourteen shapes, plus a blank; the blades scrape, generally on the pull, but pushing is also permitted [SS31][SS32]. They overlap mechanically with the scratch-stock family, though their cast body, adjustable fences and standardized cutters distinguish them from the simplest shop-made L-shaped stock. (An earlier version of this entry described the No. 66 as using "a rotary cutter disc with six selectable profiles" scraping one way only; that was wrong — the cutter disk belongs to the Williams–Poole hand-beader, US 319,161 [SS34].) A "coach router" / "quirk router" / "sash router" is a distinct tool in the same broad family: Peter Follansbee, comparing a period coachmaker's tool directly against his own scratch stock, notes the blade is "not perpendicular like a scratch stock, but more pitched like a true plane" [SS9]. In luthiery, a "purfling cutter" (e.g., the Ibex, sold by StewMac) is a purpose-built twin-blade tool for binding/purfling channels; forum practice shows the terms overlap in casual use, with a shop-made scratch stock offered as a DIY substitute on that task [SS27][SS28]. Not interchangeable by default: scratch stock vs. purfling cutter, chair devil, coach/quirk router, molding plane or powered router — overlap must be matched on geometry and operation.


how NOT to use it (the heaviest section)

not-for: long, straight production runs (too slow, no advantage over a router or molding plane at volume); deep/architectural moldings beyond the tool's reach without a purpose-built larger holder [SS6]. Softwood is a caution, not a prohibition — trial on scrap [SS16].

dangerous: No scratch-stock-specific injury account was located. That is a research result, not a risk assessment, and it does not establish low risk. Hand scraping is low-energy relative to powered routing, but the tool has an exposed sharpened cutter, can slip when the track or fence loses registration, and is often made by cutting, snapping, filing or grinding saw or scraper steel — which adds sharp sheet edges, flying fragments, abrasive-wheel, heat and eye hazards. Controls, from CCOHS and OSHA general hand-tool and eye-protection guidance and the makers' instructions [SS35][SS36][SS37]:

damaging: ★ Traut designed clearance behind the thin spring cutter of his 1886 beading tool to reduce its tendency to chatter — the patent says the cutter may "spring slightly, and thereby have less tendency to chatter" [SS12]. That proves chatter was a design concern for that patented tool; it does not establish the prevalence, cause or severity of chatter across all scratch stocks. In general use, chatter and tearing come from model-specific causes — dull or burred cutters, excess projection, loose retention, poor registration, stroke direction against the grain — and are corrected by sharpening to the maker's geometry, reducing projection, re-seating the cutter, steadier fence pressure, or reversing direction [SS4][SS3][SS33]. Dull blades tear rather than scrape cleanly, producing rough finishes [SS4]. Filing a hardened production blade (e.g., Lie-Nielsen A2 at Rc 60–62) to change its profile, instead of using a blank, ruins the blade and the file [SS32].

beginner-trap: ★ on a basic shop-made stock, the missing depth stop is the central trap: "Since there's no depth stop on a scratch stock, you'll have to pay attention to how deep you're cutting and stop when you reach the desired depth of the profile" [SS16] — add a stop block (as Hock specifies) or choose a model with a gauge if consistent depth matters [SS33]. The same source names uneven fence pressure on the first passes, before the cutter's track self-guides, and trying to work the whole length in one continuous pass rather than short sections [SS16]. A lower-confidence source adds that tilting the tool on a rounded profile distorts a circular arc toward an ellipse, which may not show until the piece is finished [SS2]. Using salvaged steel without checking which part is fileable — and leaving teeth on — is the cutter-making trap [SS3].

misuse by analogy to related tools: ★ two independently sourced patterns. First — treating it like the plain freehand card scraper and skipping the fence: "would be almost impossible to use without a fence and make a straight profile, unless there is already a profile started or by using a batten on the piece of wood as a guide" [SS2]. Second — holding it to the standard of its powered alternative, the router, and expecting router-table consistency or speed: "Don't expect a scratch stock to create a profile as sharp and consistent-looking as a router bit... your results will likely have some minor variations" [SS16]. (Earlier wording called these "ancestor" and "descendant"; per the reviewer, they are related tools, not a documented lineage.)


correct use

Filing your own profile. Scribe the desired profile onto the end of a fileable blank and shape it with needle files; most simple profiles (beads, quirks, flutes) take only a few minutes [SS6][SS19]. Clamp the blank close to the vise jaws for filing, in a sound, securely mounted vise [SS37]. Prefer purpose-made fileable blanks (Hock, a maker's unhardened blank) for a first cutter; if salvaging saw steel, use the non-toothed portion and remove teeth and burrs first [SS3][SS33].

Light, repeated passes; depth control depends on the model. The profile deepens over many light passes rather than being cut to depth in one stroke [SS16]. A basic shop-made scratch stock usually has no integral depth stop, so depth must be watched or controlled with an added stop block [SS16]. Some patented and commercial beading tools include or permit a depth gauge: Hock specifies an attachable stop block for fixed depth [SS33]; Traut's 1883 beading-tool patent includes a bottom gauge "for regulating the depth of the cut" [SS11]; Traut's 1901 fence-support patent describes setting a support to the target depth. On the No. 66, lower the blade progressively per the manual [SS32]. Keep cutter projection to the minimum the cut needs [SS3].

Registration. Secure the work mechanically so both hands control the stock [SS35][SS37]. A flat fence registers most solidly on straight stock; curved fences are needed for curved edges but demand more deliberate control [SS21]. Keep fence pressure even on the first passes, before the cutter's own track begins to guide it [SS16].

Grain and direction — model-specific. The high-angle scraping action is often less direction-sensitive than a low-angle slicing cut, but grain, stock, cutter geometry and registration still determine the preferred direction. Tearing or chatter signals a need to change stroke angle or direction [SS15][SS21]. Hock says its tool can be pushed but pulling is more satisfactory [SS33]; Lie-Nielsen's No. 66 is generally pulled but may be pushed [SS32]; Lee Valley's cast stock works push or pull [SS38]; the Williams–Poole patent moves the cutter to either side of the guide specifically to suit grain [SS34].

Sharpening — follow the exact cutter maker. Hock blanks: file the profile edge square (90°), polish it with a slipstone, and polish both faces to remove burrs [SS33]. Lie-Nielsen No. 66 blades: stone the flat of the hardened blade and work the profile only rarely with slipstones, preserving the supplied profile [SS32]. Shop-filed salvaged cutters: keep the filed profile and deburr after filing [SS19]. No family-wide convex-edge rule is supported; an earlier version's "slightly convex" instruction and its uncertain "[sic: waste]" quotation are removed.


matching (the workbench's first read)


anatomy

Anatomy varies materially across the family; match by model, not by the classic form.


variations (living)


trades (where it appears)

Cabinetmaking and joinery (inlay borders, stringing grooves, small moldings); 17th–18th century joined-furniture reproduction (Follansbee's own working practice); furniture repair and restoration (Judd's professional use, Historic New England's institutional conservation use); coachmaking, via the related coach-router cousin; chairmaking, via the related-but-distinct chair devil; and, informally and at the boundary, luthiery, via the scratch stock's use as a DIY substitute for a dedicated purfling cutter.


lineage

Related tool — the card scraper (relationship, not documented descent). Modern shop-made scratch stocks often reuse card-scraper steel and share its high-angle scraping action, and one trade source describes them as "First made by users as a simple holder for a scraper blade" with "a fence arrangement to work a measured distance from an edge" [SS6]. That establishes functional and construction affinity. No documentary evidence of transmission from card scraper to scratch stock was located, and this entry's own history section leaves the tool's origin unresolved, so the relationship is stated as "mechanically related to a card scraper and often made from similar steel," not as ancestry.

Contemporaries / siblings.

Related commercial forms and powered alternatives (not descendants). The nineteenth-century patented beading tools — Traut 1883 and 1886, Williams & Poole 1885 — are related commercial forms, contemporaneous with or historically parallel to an undated shop-made form; they are not shown to descend from it [SS11][SS12][SS34]. The power router with a profile bit is a powered alternative / functional successor for many of the same profiles; shared function is not lineage. One enthusiast source claims a router bit "cannot cut some of the more delicate profiles made by a simple scratch stock or beader tool" — uncorroborated, held LOW, and not used for matching [SS2]. "Descendant" is reserved in this entry for sourced historical transmission, and none was found.


history (Petroski lens — what failure did each evolution fix?)

★ A mechanical affordance, documented in modern practice — not an origin story. A short guided cutter with no long sole can start, stop, and fade a profile in a short run where a molding plane's sole may not reach full depth. Peter Follansbee, examining a joined New Haven, CT chest (reproduced from Victor Chinnery's Oak Furniture: The British Tradition), writes: "The molding fades in & out at the juncture between the horizontal rails and the vertical muntins... I think you can't do that with a molding plane — the length of the plane's sole would prevent you from reaching that full-depth in such a short run, while still fading out before the muntins" [SS9]. John Lloyd (Woodworkers Institute) makes the same mechanical point in modern technique writing on the mason's-mitre joint [SS8]. What this does not establish: Lloyd's statement that the scratch stock "was the main moulding weapon of choice" in the fourteenth or fifteenth century carries no period citation, and is retained only as modern explanation/reenactment of the mason's-mitre technique — not as proof of medieval prevalence. Nor does the affordance prove that it caused the tool's origin. Claims of medieval prevalence remain unratified until a period text, image or object is produced.

★ Earliest known form and period — an open historiographic question, named rather than resolved. Follansbee states plainly, of his own long-practiced technique: "I don't know the history of this tool. I do know I have never seen it by that name in any 17th-century records" [SS9]. The closest confirmed seventeenth-century analog is Joseph Moxon's Mechanick Exercises (1683), describing a "sweep" used to scrape moldings: "To this Tool is filed a Tooth of Steel with such Roundings and Hollows in the bottom of it, as I intended to have Hollows and Roundings upon my Work... even as they do in the Molding-Plains Joyners use" [SS9] — a primary description of the scraping-profile idea, which Follansbee calls "a rather specific tool," not proof of the modern stock, name or form. The earliest depiction resembling the modern tool is an engraving in Roubo's L'Art du menuisier (1774), which Follansbee reports secondhand via Ejler Greber's History of the Woodworking Plane and says he did not check against the original French — a lead awaiting inspection of Roubo's original plate and text, not a confirmed depiction [SS9]. The comment thread is comment-level evidence: on Follansbee's post, Drew Young asks where the notion that they existed comes from, having found nothing in Moxon or Holme; Follansbee replies "yes, they existed. no, we don't know what they looked like"; Robert Trent writes that use of scratch stocks "is I think documented for 18C curved or broken scroll cornice moldings," without a citation in the comment, and Young asks for documentation [SS10]. The page establishes the names and the exchange; it does not establish all participants' credentials or that they independently examined the same evidence. Bottom line carried into this entry: eighteenth-century use is plausible but incompletely documented in the sources checked; seventeenth-century existence and appearance are unresolved; medieval prevalence is unsupported.

No source connects Petroski's "form follows failure" framework to the scratch stock by name — checked explicitly, not found. The stopped/faded-profile affordance above is a documented mechanical advantage, not a sourced design-failure origin.


human side

Peter Follansbee — the single most substantive named authority in this entry. A 17th-century joined-furniture reproduction specialist (formerly associated with Plimoth Plantation), documents his own routine technique on his blog: cutting "crease moldings" on joined oak chests with a scratch stock in combination with a plow plane (grooving the center) and a round plane (removing waste before scraping), and checking the finished profile "by laying a scrap on edge across the work to see the shadow cast" [SS9][SS10]. His account is the entry's clearest bridge between the historical-uncertainty question above and a real, dated, hands-on modern practice.

Robert S. Judd, a professional furniture repair and restoration specialist, supplies this entry's clearest restoration-trade use case, distinct from new-build joinery: "In my repair and restoration business, I often need to duplicate broken or missing moldings... no power tool can match the irregularities of the handworked wood found in older pieces" [SS6].

Karen Bishop, Mellon Conservation Fellow at Historic New England, made a custom scratch stock in 2022 to reproduce trim on a replica of a 17th-century carved box, filing a steel blank "to match the negative space around the profile of the remaining original molding piece" — a dated, named, institutional conservation use documented on the museum's own blog [SS14].

Garrett Hack, a nationally known furniture maker writing for Fine Woodworking, gives the entry's clearest design-freedom account: "there's really no limit to the profiles you can create... they've also changed my design aesthetic, allowing me to play with edges to create custom profiles" [SS19].

Trades and adjacent communities. Coachmaking, via the coach-router/quirk-router cousin (see lineage) [SS2][SS9]; chairmaking, via the related-but-distinct chair devil, developed and shared between named makers Peter Galbert and Rich Pallaria [SS7]; and inlay/stringing work, noted in a 1994 patent's background language: "scratch stocks or hand beading tools have long been used by cabinetmakers for forming grooves or other molded shapes in work pieces... to receive inlaid strings and bands" — background statement, not proof of any origin date [SS5].

Forum testimony. A Sawmill Creek thread documents a bead on a curved hunt-board skirt: the poster built a scratch stock from 8/4 hard maple, a 5/16" knurled screw, and an old card scraper, and reported: "there's no magic involved... maintain steady pressure and repeat the cut until you're done" [SS15]. A Fine Woodworking forum thread confirms continued informal use for the narrow groove for line-and-berry stringing inlay [SS29].

Honest gap. No source ties a specific named individual to the earliest (17th–18th century) use of the tool — the human-side record for that period is entirely the historiographic dispute named above under "history," not biography. The living human record belongs to named 20th–21st century practitioners and restorers, not period makers.


proof of existence

Confirmed primary patents. US 284,777 ("Beading-Tool," Justus A. Traut, New Britain, CT, assigned to Stanley Rule and Level Co., granted Sept. 11, 1883) describes a bench-plane-class beading tool with a variable-width cutter clamp, fence/gauge, spurs and a bottom depth gauge [SS11]; it should not silently stand for the minimal L-shaped scratch stock. US 335,856 ("Beading-Tool," Traut, granted Feb. 9, 1886) supports the thin spring cutter and its specific anti-chatter clearance, and frames itself as an improvement on "hand beading-tools of the class which are similar to spokeshaves" — evidence the fenced hand-held beading-tool class was established enough by 1886 to have prior art [SS12]. US 319,161 (Orlando E. Williams and Lawrence V. Poole, Windsor, VT, June 2, 1885) is the two-handled hand-beader with a cutter disk [SS34]. A modern design patent, USD591580S1 (Lee Valley Tools, priority 2008), and Lee Valley's current product show modern design and sale; they do not alone prove uninterrupted lineage from Preston or an earlier shop-made form [SS13][SS38]. Checked absence: no patent found uses the literal term "scratch stock."

Institutional record — a dated, named, modern conservation use, not a period artifact. Historic New England documents a 2022 project by a named Mellon Conservation Fellow (Karen Bishop) making and using a scratch stock to reproduce 17th-century molding trim [SS14]. This is real, high-reliability institutional evidence of the tool's continued use in professional conservation practice — but it documents a modern reproduction tool, not a surviving period artifact. Checked absence: no specific catalogued scratch-stock object record was found at Colonial Williamsburg, Winterthur, or the Mercer Museum in this research pass, despite all three institutions holding general early American tool collections at a scale that plausibly includes one — an honest gap in this pass, not a confirmed negative, and a candidate for a deeper follow-up search against those museums' own object databases.

No archaeological evidence was found, and no dated 17th-century physical example — consistent with, and explained by, the open historiographic dispute named under "history."


references

(Reference kind: book | video | blog | forum | reddit | museum | patent | named_maker | manufacturer | trade_press | retailer | vendor_blog | archaeological)

TagSourceAuthor/PublisherLinkKind
SS1Scratch stockWikipedia, citing Michael Dunbar, Restoring, Tuning & Using Classic Woodworking Tools (1989)en.wikipedia.org/wiki/Scratch_stockencyclopedia (tertiary, cites named published source)
SS2"Scratch stock"The Valley Woodworker (blog), 2017thevalleywoodworker.blogspot.com/2017/02/scratch-stock.htmlblog, LOW-MEDIUM (internally cites DATAMP, Lee Valley, Lie-Nielsen)
SS3"Make & Use a Scratch Stock in Woodworking"David Ray Pine, via Wood and Shop (Joshua Farnsworth)woodandshop.com/make-use-scratch-stock-woodworking-david-ray-pinetrade_press / named practitioner
SS4"Choosing Antique Scratch Stocks & Hand Beaders"Bill Anderson, via Wood and Shopwoodandshop.com/choose-antique-scratch-stock-hand-beaders-hand-routerstrade_press / named practitioner
SS5US 5,353,507A, "Beading tool"1994patents.google.com/patent/US5353507Apatent, primary
SS6"Scratch Stocks Can Reproduce Most Moldings," Fine Woodworking #109Robert S. Juddfinewoodworking.com/project-guides/handplanes/simple-tools-can-reproduce-most-moldingstrade_press, named professional
SS7"Turning Tools"Lost Art Press blog, 2024-07-16blog.lostartpress.com/2024/07/16/turning-toolstrade_press / publisher blog
SS8"Mason and Housework"John Lloyd, Woodworkers Institutewoodworkersinstitute.com/mason-and-houseworktrade_press, named author
SS9"scratch stock evidence" (2012-01-14)Peter Follansbeepfollansbee.wordpress.com/2012/01/14/scratch-stock-evidenceblog, named practitioner, primary quotes (Moxon, Roubo via Greber)
SS10"scratch stock moldings 2" (2012-01-10), incl. comment thread (Drew Young, Robert Trent)Peter Follansbeepfollansbee.wordpress.com/2012/01/10/scratch-stock-moldings-2blog + named-historian comments, LOW-MEDIUM for comments, HIGH for named credentials
SS11US 284,777, "Beading-Tool"Justus A. Traut / Stanley Rule and Level Co., 1883patents.google.com/patent/US284777Apatent, primary
SS12US 335,856, "Beading-Tool"Justus A. Traut / Stanley Rule and Level Co., 1886patents.google.com/patent/US335856Apatent, primary
SS13USD591580S1, "Beading tool" (design patent)Lee Valley Tools, Ltd., priority 2008(Google Patents, cited-by record)patent, primary
SS14"Adventures in Woodworking Part 3"Karen Bishop, Historic New England, Feb. 2022historicnewengland.org/adventures-in-woodworking-part-3-lathe-turning-and-scratch-stockmuseum, institutional, HIGH
SS15"Scratch Stock – Simple, Easy, Effective (Photo Tutorial)"Sawmill Creek forumsawmillcreek.org/threads/scratch-stock-simple-easy-effective-photo-tutorial.97319forum
SS16"Rediscovering the Scratch Stock"Vince Ancona, Woodsmith, 2019woodsmith.com/article/rediscovering-the-scratch-stock-low-tech-advantagetrade_press, named author
SS17"Stanley and/or LN 66 Beading Tool"Sawmill Creek forumsawmillcreek.org/threads/stanley-and-or-ln-66-beading-tool.32236forum
SS18"Make a Scratch Stock"Canadian Woodworkingcanadianwoodworking.com/project/make-a-scratch-stocktrade_press
SS19"Make Your Own Scratch Stocks"Garrett Hack, Fine Woodworking, 2016finewoodworking.com/2016/03/30/make-your-own-scratch-stockstrade_press, named professional
SS20Lee Valley Cast Scratch Stock, product listingClassic Hand Tools (UK reseller of Lee Valley product)classichandtools.com/lee-valley-cast-scratch-stock/p1400retailer, direct, current
SS21Lee Valley Cast Scratch Stock reviewDerek Cohen, In The Woodshop, 2016inthewoodshop.com/ToolReviews/LVCastScratchStock2.htmltrade_press, named reviewer, first-hand
SS22Hock Scratch Stock, product pageHighland Woodworking (authorized dealer)highlandwoodworking.com/products/hockscratchstockmanufacturer/dealer, direct, current
SS23Hock Scratch Stock, product listingClassic Hand Toolsclassichandtools.com/hock-scratch-stock/p1517retailer, direct, current
SS24"How To Make A Scratch Stock" (2008)Fine Woodworkingfinewoodworking.com/2008/07/31/how-to-make-a-scratch-stocktrade_press
SS25"Making a Scratch Stock"Bob Rozaieskibrfinewoodworking.com/making-a-scratch-stockblog, named practitioner
SS26Lie-Nielsen No. 66 Beading Tool, reviewFagerjord.orgfagerjord.org/product-review/4300trade_press, named reviewer
SS27Ibex Purfling Cutter, product pageStewMacstewmac.com/luthier-tools-and-supplies/types-of-tools/chisels-and-knives/ibex-purfling-cutterretailer, direct
SS28Purfling/binding-slot discussion threadClassical Guitar Delcamp forumclassicalguitardelcamp.com/viewtopic.php?t=112118forum, LOW
SS29Stringing tools discussionFine Woodworking forumfinewoodworking.com/forum/stringing-toolsforum
SS30Hock Scratch Stock, listing (search snippet only, page not independently fetched)Woodcraftwoodcraft.com/products/hock-scratch-stockretailer, unconfirmed live pricing
SS31Iron Beading Tool and Blade Set, product pageLie-Nielsen Toolworkslie-nielsen.com/products/iron-beading-tool-and-blade-setmanufacturer, direct (status as checked by the reviewer 2026-07-30)
SS32No. 66 Iron Beading Tool Instructions (12-14-23)Lie-Nielsen Toolworksd3h1zj156zzd4j.cloudfront.net/pdf/66%20Iron%20Beading%20Tool_12-14-23_1up_edit1.pdfmanufacturer manual, primary
SS33Hock Scratch Stock InstructionsHock Tools, via Highland Woodworkinghighlandwoodworking.com/Library/Manuals/Hock/Hock%20Scratch%20Stock%20Instr..pdfmanufacturer manual, primary
SS34US 319,161, "Hand-Beader"Orlando E. Williams & Lawrence V. Poole, Windsor, VT, 1885patents.google.com/patent/US319161A/enpatent, primary
SS35Hand and Power Tools (OSHA 3080)OSHAosha.gov/Publications/osha3080.pdfregulator guidance, HIGH
SS3629 CFR 1910.133, Eye and Face ProtectionOSHAosha.gov/laws-regs/regulations/standardnumber/1910/1910.133regulation, HIGH
SS37Hand Tools: VisesCCOHSccohs.ca/oshanswers/safety_haz/hand_tools/vises.htmlnational OHS authority, HIGH
SS38Cast Scratch Stock, product pageLee Valley Toolsleevalley.com/en-us/shop/tools/hand-tools/73766-cast-scratch-stockmanufacturer/retailer, direct

The reviewer's corrections (17)

Cite this entry: "Scratch Stock." Hewn Tool Library, hewn.build/tools/scratch-stock. Reviewed 2026-07-30. Also as plain Markdown.