High Quality Material: Deburring tool kit made of tungsten steel, corrosion and rust resistant, high strength and hardness, three tungsten steel cutting blades with powerful cutting and repair functions for clean and efficient deburring, ensuring a long service life. Safe and Effective: This threaded rod deburring tool easily shaves the outer edges of a flattened screw. Simply attach it to a power drill and apply light pressure to the screw head. Simplifies the repair process and eliminates the need to replace expensive or hard-to-find hardware. Package Contents: You will receive 2 pieces of deburring chamfer tool, Large size: (5mm - 25mm) Small size: (3mm - 20mm), Simple design and compact size, Makes it very convenient to use, deburring metal tool provides an effective solution for deburring and repairing various materials. Easy to Use: This deburring external chamfer tool by shearing the metal layer by layer, you attach an external deburring tool to the end of a drill, then apply light pressure to remove burrs from the bolt. You won't cut your hand, there are no sparks or burns. Wide Applicability: Use this external deburring chamfer to repair various metals, such as stainless steel, hardened steel, mild steel, brass, copper, aluminum, fiberglass, and even wood or plastic. Its simple design and compact size make it very convenient to use and easy to carry with you in your toolbox.