2pcs Silver Stainless Steel Deburring External Chamfer Remove Burr Tool for Drill Bit Nut Bolt Quick

Objective: Quickly repair damaged bolts and tighten nuts. For bolt sizes 8-32 (.164) to 3/4"-10 (.750) - (4mm -19mm), use the lowest speed drill bit and press down lightly to remove burrs. Wide range of uses: high strength, high hardness Suitable for stainless steel, hardened steel, mild steel, copper, brass, aluminum, wood, plastic, etc. Easy to Use: Use the lowest speed on the drill and press lightly to remove burrs. Repairs are simplified without the need to replace expensive hardware. Note: This tool works by cutting metal layer by layer.Low speed, no unnecessary cuts and the use of cutting oil or other lubricants will ensure a long life.