Cut and renew external and internal threads to exacting standards with the ABN Metric and SAE Standard Tap and Die 60-Piece Rethread Set Rethreading Kit for Cutting External and Internal Threads. Each tap and die is constructed from hardened alloy steel for maximum strength so they can easily cut materials such as cast iron, steel, aluminum, copper, and more. This set includes coarse and fine threaded and numbered taps and dies from #4 - 40 to #12 - 24 and fractional taps and dies from 1/4" - 28 to 1/2" - 20, 1/8" - 27 NPT tap and die, metric tap and dies from M3 x .5 to M12 x 1.75, thread gauge, tap handle, die handle, and a small tap chuck. This 60-piece set is neatly contained inside a heavy-duty plastic blow-molded case for your convenience. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.