100% new and high quality Features: This Deburring External Chamfer Tool quickly repairs damaged bolts and tightens the nuts in place, saving you time and money. The tool simplifies the repair process, can reduce repair time, and eliminates the need to replace expensive or hard-to-find hardware while maintaining safety at levels previously unattainable. Simple design and a compact size, means the tool is easily carried in your tool pouch. Quickly slap it into your hand drill and start repairing work pieces. The operation is simple, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr. Save an immeasurable amount of time and money by not replacing expensive and hard to find fasteners. Especially when dealing with fixed bolts. Effective on: Stainless Steel / Hardened Steel / Mild Steel / Copper / Brass / Aluminum / Fiberglass / Wood / Plastic. Proper Use: This tool works by way of shearing metal layer by layer. Slow speed, along with no unnecessary cutting and the use of cutting oil or another lubricant will bring it long life. Note: Please allow 0-2mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!