Perma-Coil M8 x 1.0 Thread Repair Kit contains 1 tap, 1 installation tool, and 6 inserts. Made in U.S.A. Requires drill size 21/64". Note, this is a FINE pitch thread (1.0), which is quite uncommon. For the more common 1.25 pitch, see item #1221-308. Please confirm your thread size/pitch before ordering.