These 1″ x 3″ x 1/4″ thick diamond-coated stones work particularly well for in-place honing of jointer / planer knives, as its small size makes it easy to feel precisely what you’re doing. A small groove in the center of the stone ( for sharpening fish hooks, they say ) doesn’t interfere with other sharpening chores. The stone may be used dry, but it will resist clogging much better if you pour some water on the surface before starting work. Scrub occasionally with abrasive cleanser to remove packed-in swarf and keep the stone working optimally.
- Coarse is 250 grit
- Medium is 400 grit
- Fine is 600 grit
- Super Fine is 1200 grit
- Set of 4 includes one each of coarse, medium, fine & super fine.
















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