Those who have worked with metal, including deburring and edging of bolts, will appreciate the special attachment on a conventional drill, which helps to perform the work as quickly and conveniently as possible. The stainless steel attachment is inserted into the drill chuck and is designed for use at low drilling speeds. This tool quickly repairs damaged thread ends so that the nut can be screwed back on unobstructed, saving money and time. Unibur simplifies the repair process, reduces time spent stripping thread ends, and allows you to repair threads by deburring where you couldn't reach before.