Standard taps are actually designed to cut new threads rather than chase existing ones. Every time you use a standard tap to chase a set of head bolt threads, for example, the tap will also remove ...

Few things disturb us more than the bewilderment of a broken bolt or seized pipe plug in a casting. You’re at a loss for how to get the darned thing out. This is when you have to slow down and come up ...

Collapsible taps have interchangeable tap heads and a common body, and will tap virtually any thread form with the appropriate chaser. Styles include: Model ALTs for straight-thread tapping, Model LLs ...

One of the keys to building a performance engine is paying attention to the details. This includes making sure that all of the threaded holes in your engine block are in great shape and ready to ...