This is a 7 piece set of metric rethreading taps including: M6x1, M8x1.25, M10x1.5, M10x1.25, M12x1.75, M12x1.5, M12x1.25 . These are all sizes commonly found on products made in the USA, Japan and Europe. In most situations they will clear away rust and dirt or straighten out threads that have been damaged. The benefits of using these instead of a regular cutting tap are: less expensive, convenient hex drive that will fit in your socket set, shorter than most taps for hard to reach areas, won’t undercut threads, and they are less brittle. Each tap has the size stamped into it and they come in a vinyl pouch. Use these and keep your thread cutting taps sharp for when you need to make new threads! mstc part# RC7  * MADE IN THE USA*
PLEASE TAKE A LOOK AT OUR EBAY STORE BECAUSE WE ARE NOW OFFERING U.S. RETHREADING TAP SETS IN COARSE AND FINE (when available).