CSLU-Tool 10pcs 1/8" Shank Tungsten Steel Solid Carbide Rotary Files Diamond Burrs Set Fits Dremel Rotary Tool Tungsten Carbide Single Cut Rotary Burr SET 1/8" shank Fit Dremel Material: Tungsten Carbide Use: Rotary Burr Shaft diameter:Approx.3mm Works with mostly small rotary tools for DIY carving fans. For Woodworking Drilling Carving Engraving