After tapping, the taps act as guides to keep the included facing cutter perfectly square with the axis of the bottom bracket for cleanup of the faces of the bottom bracket shell.
Includes:
- 1.370" x 24 TPI right hand tap – English adjustable cup (part 691)
- 1.370" x 24 TPI left hand tap – English fixed cup (part 692)
- 45mm facing cutter (part 690)











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