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.PRODUCT FEATURES:- 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 10-32 taps- Replacement taps (Cat. No. 626-32) available- Made in the USA