- Material and construction: made from hard stainless steel for durability and rust resistance; features 3 tungsten steel cutting blades for strong cutting and effective burr removal. - Core function: external deburring and chamfering tool designed to clean and finish screw edges for a smooth, flat or recessed appearance. - Burr removal on screws: safe and easy to shave the outer edges of screw heads flat. Attach to a drill bit and gently press on the screw head to simplify repairs and avoid the need for hard-to-find hardware. - Thread and bolt repair: quick to repair damaged bolts and tighten nuts; easy to repair screws, helping save time and effort. - Design and compatibility: precision industrial design with refined production technology; easy to install and suitable for all types of drilling rigs. - Use scenarios: - Furniture assembly or repair: quickly clean up screw heads to allow screws to sit flush and prevent damage to moving parts. - Automotive or machinery maintenance: repair damaged bolt threads and restore reliable nut tightening without replacing fasteners. - General DIY and workshop tasks: restore damaged fasteners, reduce downtime, and keep projects moving smoothly.