These key-chain hones have all the advantages of a monocrystalline bench stone in a portable hone. Excellent for steel or carbide, they make ideal hones in the shop, kitchen or camp.
The working surface of the hone is 2 5/8" × 1" (5/32" thick).
All will fit in the slot of chip-limitation router bits. 220x (extra-coarse) or 325x (coarse) is best for stock removal, 600x (fine) is good for knives and shears.
Made in USA.