Description:Type: woodworking cutterTotla length:39mmMaterial:high-speed steelUse Range:Clean flash， burrs during casting， forging， welding，etcCarving of a variety of metals and non-metallicFinishing various metal abrasives，Impeller track，machinery inner hole surface.​Safety Tips:1. Carbide burrs speed is generally 6000-40000 rev / min when used on pneumatic or electric tools， the tool must be clamped tight.2. Cutting direction should move from right to left smoothly， do not cut back and forth as using the wheel;be careful not to use too much force (pressure is generally not more than 4 kg).Diameter parameters:Triangle head 3.17mm shank 3.175mmCylindrical head 3.17mm shank 3.175mmInverted cone head 3.1mm shank 3.175mmBall head 3.1mm shank 3.175mmUmbrella head 6mm shank 3.175mmLarge-toothed head 8mm shank 3.175mmPackage Included:1× 6PCS Wood Cutter Set