a naturally abrasive material of high density

even here you can see not only the basic sharpening angle (bevel towards the cutting edge) but also the secondary bevel

U-fork pivot unit with the 170° rotation

Narrow Narrow glass on aluminum blank Working area 152 x 12 x 6 mm (6" x ½" x ¼") Suitable for recurved blades

bori lube 10 polishing lubricant a naturally abrasive material ofBORI 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.