Helicoil Metric Hand Taps: Roughing

Roughing Taps
For starting thread forms. Straight fluted taps made under size to reduce load and wear on the finishing tap, suitable for difficult tapping operations or when close tolerance fits are required.

Thread Repair System
Provides effective means of reinforcing and repairing tapped threads. Widely used in automotive and aerospace industries with approvals from British Aerospace, CAA, Fairey, Lucas, MOD, Westland and other recognised organisations.