Fashion outlet 50PCS 1/8 &iexcl;&aring; Shank Diamond Coated Rotary Burrs Small Head Style Rotary Tool 100% Brand New and High Quality 50 pieces kit, diamond coated rotary burrs, small head style. Material: Diamond Quantity: 50 PCS / Set 1/8" (3mm) shank for electric rotary tools, drills, high speed die grinders and flex shafts.