7pcs NPT Pipe Taps Set, Metric Thread Taps M3, M4, M5, M6, M8, M10, M12 Bearing Steel

Specifications:  Material: Bearing steel  Standard: Metric  Size: M3, M4, M5, M6, M8, M10, M12  Quantity: 7  Instruction:  1, Insert cone part first and make sure the tap center line agrees with drilling center line. 2, Rotate tap wrench with a even force to feed tap, don't need to add force after feed. 3, Reverse rotate about 45 ° each time rotate tap to cut chip in order to avoid blocking. 4,  If it is difficult to rotate tap, stop adding force or tap will be broken.  Package Includes:  7 x Taps (Tap wrench is not included)