To make grit uniform and customer-friendly

F80 to F 240 utilize legacy binder

a naturally abrasive material of high density

then set the thickness compensator to the working position and secure it with a thumb screw

Precise Knife Straight Edge is a simple tool to test the flatness of the sharpening stone by a light slit

bori lube 10 polishing lubricant To make grit uniform andBORI LUBE 10 is a water based lubricant to be used with all Boride sharpening stones during sharpening in order to clean, lubricate and prevent stone loading. The main component is dipropylene glycol, non toxic odor free liquid. BORI LUBE gives better feedback in sharpening in comparison with soapy water. Volume 1 pint.