The back was the prerequisite. Flat back, polished to the apex on both faces. If you haven't done that work, this post won't help you much. Go back to Post 253.
This one is the bevel. It's where most of your session time goes.
Why you want a hollow grind
A hollow-ground bevel curves inward — concave. A grinding wheel makes it. Most tools come from the factory with a flat bevel. Most experienced sharpeners regrind them.
Here's the argument. When you hone a hollow-ground bevel on a flat stone, only two narrow zones contact the stone: the heel and the very tip. The hollow in between floats. You're removing metal only at the apex — not polishing a full bevel face on every stroke.
The result: ten strokes on a finishing stone to refresh a properly hollow-ground bevel. Fifty strokes to do the same on a flat bevel. That's not a small difference when you're sharpening three times a day.
Experienced sharpeners regrind rather than hone through. Establish the hollow at the grinder, maintain it at the stones.
Regrind when: the hollow has honed through and you're back to a flat bevel; there's a nick that goes below the bevel face; the angle has drifted and you've got a dubbed, rounded tip; or a factory bevel was never set to the right angle in the first place.
Don't bother hollow-grinding card scrapers or marking knives. The geometry doesn't apply to thin blades.
Freehand honing
Three variables. Get all three right and freehand is faster than any jig and builds real diagnostic ability.
Angle. Set the heel of the bevel on the stone, then rotate the handle slightly forward until you feel edge contact. A hollow bevel tells you when you've found the angle — you feel heel and edge simultaneously. That's your position. Stay there.
The error is lifting the handle. Every extra degree builds a secondary bevel you don't want.
Pressure. Moderate on coarse and medium grits. Light on finishing stones — enough to keep the tool flat, not enough to feel like work. Heavy pressure generates heat, wears the stone unevenly, and blurs the edge you're trying to refine. Let the abrasive cut.
On the back stroke, lift the tool. Dragging it edge-first across the stone cuts the apex — which is what you just spent ten strokes building.
Movement. Small circles for chisels under an inch wide. Figure-8 across the full stone for plane irons and wider chisels. The figure-8 distributes wear and keeps the stone from dishing in the center.
Start at the coarsest grit that matches the condition. Just dull? Finishing stone only. Heavily dull? Start at medium. Geometry wrong? Coarse first.
Work each grit until a wire edge forms across the full width of the blade on the back. That's how you know the bevel has reached the apex. Then three light back passes to remove the wire edge from that stage before moving to the next grit. Don't skip this. Leftover wire from a coarser grit shows up as a ragged edge at the end and you won't know why.
Jig-assisted honing
The guide makes the angle visible and locked. Trade setup time for consistency.
It helps when you're new and still building feel for angle, when you're matching a set of tools to a single spec, or when paring chisels need to hit the same angle every session.
It limits you on non-rectangular geometries, tools with handle shapes that don't seat consistently, and quick refreshes where setup takes longer than honing.
Most experienced sharpeners own a guide and rarely touch it. Most beginners should use it more than they do. The guide doesn't make better edges. It makes consistent ones while you're still developing feel.
The microbevel
A microbevel is a secondary bevel 2–3° steeper than the primary. Instead of honing the full bevel face, you hone a narrow strip at the very tip.
At 27° primary, you have a full bevel face to contact the stone. At 30° microbevel, you're only touching the last few degrees. Five to ten finishing-stone strokes raises a wire edge. The contact zone is tiny.
The tradeoff: faster refresh, slightly less acute edge. Whether the edge acuity matters depends on the tool.
Bench chisels and bench plane irons: microbevel standard. Durability matters more than acute angle.
Paring chisels and mortising chisels: primary bevel only. The acute angle is the point, literally.
Smoothing plane iron: microbevel for durability, primary-only if you're chasing the finest possible surface.
The microbevel gets wider with each refresh session. Eventually you've effectively honed the full bevel. When that happens, regrind, re-establish the hollow, start fresh.
Stropping
Stropping removes the microscopic wire edge debris that persists after stone work and polishes the apex past what the finest stone can reach. It's the last step of every session.
It's also the first thing to try when an edge starts struggling mid-session.
Session protocol: 10–15 trailing strokes, bevel down, edge trailing. Not pushing the edge into the leather — rolling the edge forward makes a micro-burr that undoes the work. Trailing strokes. Then three or four back passes (flat face of the tool) to clear any remaining wire fragment. Test.
Mid-session: if the tool is struggling through work that was easy ten minutes ago, try three to five strokes on the strop before returning to the stone. It often works. When it doesn't, the edge needs stone.
If you're stropping more than three times per session before returning to work, the edge isn't holding and the strop isn't the solution. Back to the stone.
The session
A well-maintained chisel:
- Back check — three light passes on the finishing stone if the back was properly maintained last time. Five minutes at the lapping plate if the hollow is returning.
- Angle check — set the heel, find edge contact, confirm the hollow is still there.
- Hone — finishing stone only for a dull edge; medium then finish for heavy use.
- Wire edge removal at each grit. Light back passes.
- Strop — 10–15 trailing strokes, three back passes.
- Test.
Three to five minutes for a maintained tool. Fifteen to twenty coming off a long project.
The system works when it's maintained. Skip back prep, avoid the grinder, hone flat bevels until the geometry drifts — the same edge that took five minutes to keep sharp now takes forty minutes to recover. The penalty compounds every time you let it slide.