A sharp chisel slices end grain cleanly, pares to a line with hand pressure and is safer to use, because you don't have to force it. Sharpening isn't difficult once you understand the basic steps: flatten the back, set the bevel, hone a micro-bevel and remove the burr.
This guide walks through each step and helps you choose the right sharpening stones and honing guide.
Chisel Anatomy for Sharpening
- Back: the flat face of the chisel. The last inch or so behind the edge must be flat and polished.
- Primary bevel: the main ground angle, typically about 25° for bench chisels.
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Micro-bevel (secondary bevel): a tiny, slightly steeper bevel, often about 30°, honed right at the edge.
It's quick to refresh, because you only polish a sliver of steel.
- Burr (wire edge): a thin curl of steel that forms on the back as you hone the bevel. Removing it is the final step to a truly sharp edge.
Recommended Sharpening Angles
| Chisel | Primary bevel | Micro-bevel |
|---|---|---|
| Paring chisels (light hand pressure) | 20° to 25° | Optional, about 25° |
| Bench chisels (general use) | 25° | About 30° |
| Mortise chisels (heavy mallet work) | 30° to 35° | Optional |
Lower angles cut more easily but the edge is more fragile. Use steeper angles for hard woods and heavy chopping.
Choosing Sharpening Stones
| Type | Pros | Cons |
|---|---|---|
| Water stones | Cut fast and leave a very fine polish | Wear unevenly and must be flattened regularly |
| Diamond plates | Stay flat, cut fast, and also flatten water stones | Higher upfront cost; very fine grits are limited |
| Oil stones | Durable and traditional | Slower cutting and messier |
| Sandpaper on glass | Inexpensive way to start | Paper wears out quickly |
A practical starter kit is a coarse stone of about 220 to 400 grit for repairs and flattening, a medium 1000 grit stone for the bevel, and a fine 4000 to 8000 grit stone for polishing.
See our Pride Abrasives water stones, Suehiro Cerax Japanese stones and DMT dual-grit diamond stones.
Use a Honing Guide
A honing guide clamps the chisel at a fixed angle so every stroke hits the same bevel. It's the fastest way to get consistent, repeatable results. The Veritas MkII honing guide sets precise angles and micro-bevels, and a vise-style honing guide is a simple, affordable option.
How to Sharpen a Chisel Step by Step
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Flatten the back (first time only). Lay the back of the chisel flat on your coarsest stone and rub until the last inch behind the edge shows an even scratch pattern.
Work up through the grits to a mirror polish. You only need to do this once per chisel.
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Set the primary bevel. Clamp the chisel in the honing guide at 25°.
On the coarse or medium stone, push and pull with even pressure until you feel a slight burr along the full width of the back.
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Hone the micro-bevel. Raise the angle to about 30° and hone on the medium stone, then the fine stone, with just a few strokes each.
You'll see a thin, bright band at the edge.
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Remove the burr. Lay the back flat on the fine stone and take a few light strokes to remove the wire edge.
Alternate a stroke or two on the bevel and back until it's gone.
- Strop (optional). A few passes on a leather strop loaded with polishing compound gives a final, razor-sharp edge.
- Test. A sharp chisel pares a thin, curly shaving from the end grain of a softwood board with hand pressure alone.
Keeping Chisels Sharp
- Touch up the micro-bevel on the fine stone as soon as the chisel stops cutting cleanly. It only takes a minute.
- Regrind the primary bevel only when the micro-bevel gets wide or the edge is chipped.
- Keep water stones flat with a flattening stone or diamond plate.
A dished stone rounds your edges.
- Store chisels so the edges don't touch other tools.
Sharpening Systems
If you'd rather have an all-in-one setup, a complete sharpening system like the FastTrack MK2 bundles the guide and abrasives so you get consistent angles every time.
Read Inexpensive Sharpening System Guarantees Results.
Chisel Sharpening FAQ
What angle should I sharpen my chisels?
A 25° primary bevel with a 30° micro-bevel works well for most bench chisels. Use 20° to 25° for paring chisels and 30° to 35° for mortise chisels.
What grit do I need to sharpen chisels?
A medium 1000 grit stone and a fine 4000 to 8000 grit stone handle routine sharpening. Add a coarse 220 to 400 grit stone for flattening backs and repairing chips.
Do I need a honing guide?
It isn't required, but it makes consistent, accurate bevels much easier, especially for beginners.
How often should I sharpen chisels?
Hone whenever the chisel stops cutting cleanly, which may be several times during a project. Frequent quick touch-ups are faster than letting an edge get very dull.
Shop all sharpening supplies and woodworking chisels.
