The store will not work correctly when cookies are disabled.
We use cookies to provide you with the best possible user experience. By continuing to use our site, you agree to their use. To learn more, view our
Cookie Policy.
It's imperative to have clean and straight threads to achieve proper torque when rebuilding an engine. Our high-quality tap sets will restore and clean bolt holes in blocks, heads, components, etc., without undercutting. We offer sets in both N.C. and N.F. thread types, and all sizes are stamped for ease of identification. Both of our six piece sets are packed in a plastic pouch and include sizes 1/4", 5/16", 3/8", 7/16", 1/2", and 9/16".