Q: What grit stone should I use for chisels?
For a badly worn or very dull chisel, start with a coarse shaping stone like this Shapton 320x. It's one of three shaping-grade stones meant for regrinding the bevel before moving to finer grits.
320x blue-black Ha-No-Kuromaku stone used with the Veritas side-clamping honing guide
Ha-No-Kuromaku stones are the workhorses of many woodshops. Precisely graded sharpening media are bonded to create a stone that is durable yet fast cutting.
The blue-black 320x stone is an excellent everyday shaping stone for regrinding the bevel or grinding a very dull blade. It’s one of three shaping stones with a range code of 1 (along with white 120x and moss 220x); the larger the blade to be shaped, the coarser the stone you should choose.
It measures 210mm × 70mm × 15mm (8 1/4" × 2 3/4" × 5/8") and is supplied in a color-matched live-hinge plastic storage case that also serves as a stand. Four urethane feet on the vented case bottom give a good grip, while molded ribs on the case lid hold the stone in place. Both sides of the stone are usable.
The stone can be used with the Shapton stone holder, field holder and pond. It can also be used as an oil stone, but then must continue to be used with oil only. Weighs just shy of 20 oz (550g).
| Sharpening Stage | Grit Range (µ) | Micron (µ) | Kuromaku | Range Code |
| Shaping 30.1–150 | 122.5 | 120 | 1 | |
| 30.1–150 | 66.82 | 220 | ||
| 45.94 | 320 | |||
| Grinding 10.1–30 | 20.1–30 | 29.4 | 2A | |
| 25 | ||||
| 15.1–20 | 20 | 2B | ||
| 10.1–15 | 14.7 | 1000 | 2C | |
| 11.5 | ||||
| Honing 3.01–10 | 8.01-10 | 9.8 | 1500 | 3A |
| 6.01 | 7.35 | 2000 | 3B | |
| 6.7 | ||||
| 3.01-6 | 4.9 | 3C | ||
| 4 | ||||
| 3.68 | ||||
| Polishing 0.25-3 | 1.51-3 | 3 | 4A | |
| 2.94 | 5000 | |||
| 2.45 | ||||
| 2 | ||||
| 1.84 | 8000 | |||
| 0.76-1.5 | 1.47 | 4B | ||
| 1.2 | ||||
| 1 | 12000 | |||
| 0.92 | ||||
| 0.85 | ||||
| 0.25-0.75 | 0.49 | 30000 | 4C | |
| 0.44 |
For a badly worn or very dull chisel, start with a coarse shaping stone like this Shapton 320x. It's one of three shaping-grade stones meant for regrinding the bevel before moving to finer grits.
Use it when regrinding a bevel or working out a very dull edge. The larger the blade or the duller the edge, the coarser the stone you should start with.
Yes, it can be used as an oil stone, but once oil is introduced it should continue to be used with oil only, not water.
| Dimensions | 8 1/4" × 2 3/4" × 5/8" (210mm × 70mm × 15mm) |
| Weight | Just under 20 oz (550g) |
| Includes | Ceramic stone; color-matched live-hinge storage case |
| Package Quantity | 1 item |
| Warranty | Lee Valley Satisfaction Guarantee |
| Materials | Ceramic |
| Compatibility | Works with the Shapton stone holder, field holder and pond |
| Color/Finish | Blue |
| Dishwasher Safe | No |
| Grit | 320x |
Options:
Variations:
Shapton 320x Blue-Black Ha-No-Kuromaku Ceramic Stone
Ha-No-Kuromaku stones are the workhorses of many woodshops. Precisely graded sharpening media are bonded to create a stone that is durable yet fast cutting.
The blue-black 320x stone is an excellent everyday shaping stone for regrinding the bevel or grinding a very dull blade. It’s one of three shaping stones with a range code of 1 (along with white 120x and moss 220x); the larger the blade to be shaped, the coarser the stone you should choose.
It measures 210mm × 70mm × 15mm (8 1/4" × 2 3/4" × 5/8") and is supplied in a color-matched live-hinge plastic storage case that also serves as a stand. Four urethane feet on the vented case bottom give a good grip, while molded ribs on the case lid hold the stone in place. Both sides of the stone are usable.
The stone can be used with the Shapton stone holder, field holder and pond. It can also be used as an oil stone, but then must continue to be used with oil only. Weighs just shy of 20 oz (550g).
| Sharpening Stage | Grit Range (µ) | Micron (µ) | Kuromaku | Range Code |
| Shaping 30.1–150 | 122.5 | 120 | 1 | |
| 30.1–150 | 66.82 | 220 | ||
| 45.94 | 320 | |||
| Grinding 10.1–30 | 20.1–30 | 29.4 | 2A | |
| 25 | ||||
| 15.1–20 | 20 | 2B | ||
| 10.1–15 | 14.7 | 1000 | 2C | |
| 11.5 | ||||
| Honing 3.01–10 | 8.01-10 | 9.8 | 1500 | 3A |
| 6.01 | 7.35 | 2000 | 3B | |
| 6.7 | ||||
| 3.01-6 | 4.9 | 3C | ||
| 4 | ||||
| 3.68 | ||||
| Polishing 0.25-3 | 1.51-3 | 3 | 4A | |
| 2.94 | 5000 | |||
| 2.45 | ||||
| 2 | ||||
| 1.84 | 8000 | |||
| 0.76-1.5 | 1.47 | 4B | ||
| 1.2 | ||||
| 1 | 12000 | |||
| 0.92 | ||||
| 0.85 | ||||
| 0.25-0.75 | 0.49 | 30000 | 4C | |
| 0.44 |
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