ITEM NAME:10Pcs/Box Rotary Burrs Metalworking Rotary Files Rotary Burr Bit Set 3Mm Sh A1D5 10Pcs/Box Rotary Burrs Metalworking Rotary Files Rotary Burr Bit Set 3Mm Sh A1D5 File Cut Type:Double-cut Teeth Type:Medium-toothed Type:Rotary Files DIY Supplies:Woodworking Keywords:Rotary Burr Bit for high hardness and high abrasion resistance. There are total 10 pieces burrs in various shapes that you can use for multiple purposes. 3mm round shank would fit many electric