Rikon 82-1525 PRO CBN Bench Stone 8in x 3in 150 grit on one side and 250 grit on the other for high speed steel woodworking Wood Lathe tools

Rikon's PROseries CBN ( Cubic Boron Nitride) Bench Stone is 150 grit on 1 side, and 250 grit on the other side. Great for Starting or re-shaping your Heat treated High Speed Steel tools quickly. This 3x8 by 3/8 stone gives you plenty of surface area to work with for sharpening knives chisels gouges and plane blades No need for water with all that mess. Will not dish out over time like natural Sharpening Stones will.