Sharp and wear-resistant, can withstand high temperatures. This external chamfering tool is made of materials such as carbide steel. Ensures longer service life and improved cutting efficiency compared to similar products. Hexagonal shank with quick-release design fits most drill bits for quick removal and replacement. Can be used to repair repair metal steel screws, bolts and fasteners. Metal deburring tool has a hex shank diameter (1/4Inch) and a working diameter range to fit 1/8Inch (3mm) to 3/4Inch(19mm). Operates with full lubrication at speeds below 500 RPM. Place the chamfering tool on the screw/bolt at the lowest speed, applying slow pressure to remove the burr and can increase the speed as needed.. Ensure the drill bit completely covers the screw/bolt before starting. Suitable for use on a wide range of materials including stainless steel, copper, brass, aluminium, wood and hard plastics, making it a versatile metal deburring tool. Colour:Black Material:Metal Package Contents: 1set * deburring tool for metal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.