Taps and Dies

Thread cutting and repair: hand taps and hexagon dies in SAE, metric and NPT, screw extractors, drill and tap bits, wire gauge jobber drills, reamers, deburring tools, nut splitters, pin vises and cutting fluid.

Tap drill size is what decides whether a thread holds — drill undersize and the tap binds, oversize and the thread strips. Cutting fluid is not optional in steel or stainless.