For cutting, carving, sawing, and shaping all metals as well as ceramics, all woods, porcelain, marble, glass, etc. Coated on both sides with galvanically bonded, 120 grit diamond particles. Mandrels have a reinforced shoulder and 1/8" dia. screw. Standard 3/32" diameter shanks fit the adjustable chucks found on most flexshaft handpieces as well as 3/32" handpiece collets.