Description: 10pcs 18mm Diamond Cutting Off Disc Wheels with 2 Mandrel for Dremel Rotary Tools Specification: Material carbon steel Disc diameter approx. 18 mm\/0.71" Disc thickness approx. 0.6mm0.02" Center hole diameter approx. 3 mm\/0.12" Shank diameter approx. 3 mm\/0.12" Shank length 35mm\/1.38" Maximum line speed 20000 (rmp) Features: Diamond small sections (wet and dry). Long life, high hardness, wear resistance, and excellent impact resistance. It can be used for grinding, cutting surface, cut and polished jade, thin metal, wood, glass, etc. Package Included: 10 x Diamond Cutting Off Disc 2 x Mandrel More Details: