Driak 30 Pcs Replacement 3mm Titanium-Coated Diamond Burrs Grinding Burr Bits Set For Dremel Rotary Tools Diamond Burr Set 30pce 3mm shank 120-150 grit assorted diamond points A Versatile Set for Numerous Projects with Grits 120-150 All Burrs have a 1/8" Shank - Compatible with Most Die Grinders or Rotary Tools Assorted Shapes & Sizes Include: Ball, Cone, Rounded Cylinder, Flat Top Cylinder, Tapered & Needle Point Highly Recommended for Jewelers, Lapidary Use, Hobbies, Crafts, Craft Modeling, Home Repair & So Much More