KENT 10pcs Mix Kit Tungsten Carbide Rotary Burrs, 1/8" (3mm) Shank
10pcs Mixed Kit, Tungsten Carbide Rotary Burrs, 1/8" (6mm) Shank10 pcs Carbide rotary burr box set.1/8" (3mm) Diameter Round Shank1/4" (6mm) Head size1-3/4" (45mm) Overall LengthVarious shapes included, such as spheres, cylinders, bullets, needles, etc..... 1/8" 3mm shank for electric rotary tools, drills, high speed die grinders, and flex shafts.Fits most major rotary machines brands. Use to grind glass, marble, metal rock or jewellery.PVC box included