Features: *This tool works by way of a shearing metal layer by layer. *Simple operation, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr. *Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic. *Convenient to use.Simplifies the repair process, eliminates the need to replace expensive or hard-to-find hardware. *Safety conscientious design means no cut hands, no sparks, and no burns. *High strength and hardness. Durable in use. *Quickly repairs damaged bolts and tightens the nuts in place. Specification: *Material: CR12 MOV *Color: Black *Size: as shown *Style: Hexagonal handle *Quantity: 2pcs Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.