Deburring External Chamfer Tool-The chamfering tool is suitable for various chuck electric drills and can be polished with or without threads. It is effective for stainless steel, carbon steel, copper, brass, alloy steel, etcHigh Quality-Made of Cr12MoV, it has high strength and high hardness, durability, rust and corrosion resistance.Easy to Use-Easy and safe to use, simplify the repair process, reduce repair time, no need to replace expensive or hard-to-find hardware, use the lowest speed on the drill bit, and then gently press to remove burrs.Suitable Size-Suitable for all kinds of chuck electric drills. Simple design and compact size mean that the tool can be easily placed in your tool bag. Quickly insert it into your hand drill and start repairing the workpiece.Widely Used-This chamfer tool is widely used for almost kinds of chuck drills.Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic. This is really a nice gift for great handyman.