This is your go-to tool when creating new threads. Add machine screws to just about any material from metal to wood. Use it to form new threads, re-form burred threads or clean out plaster obstructions. Each tap size rethreads to next larger size if threads are stripped. This is your go-to tool when creating new threads. Add machine screws to just about any material from metal to wood. Use it to form new threads, re-form burred threads or clean out plaster obstructions. Each tap size rethreads to next larger size if threads are stripped. Quickly forms new threads, re-forms burred threads, and cleans out plaster obstructions Each tap size rethreads to next larger size if threads are stripped Includes 6-32, 8-32 and 10-24 tap sizes Replacement taps (Cat. No. 626-24) available This is your go-to tool when creating new threads. Add machine screws to just about any material from metal to wood. Use it to form new threads, re-form burred threads or clean out plaster obstructions. Each tap size rethreads to next larger size if threads are stripped.