This a brand new, 7 piece set of U.S. made rethreading taps that include the following sizes: M6 x 1, M8 x 1.25, M10 x 1.5, M10 x 1.25 M12 x 1.75, M12 x 1.5 and M12 x 1.25. Sizes are stamped on each tap to prevent any confusion. These are all common sizes used on U.S., European and Japanese products.
Rethreading taps are made to clear away rust, dirt and light thread damage without undercutting the existing threads. Their compact size and convenient hex drive make them great for tight spaces where regular taps won't fit.
Buy a set of these and keep your regular taps sharp for when you need to cut a new thread.
Always use oil when chasing a thread.