
This precision tool provides a piloted means of tapping the threads in a bottom bracket shell. The taps act as a guide which keeps the facing cutter perfectly square with the axis of the bottom bracket for a high quality facing and cleanup of the bottom bracket shell.
Set 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)
. Note: Always use a cutting fluid such as Park Tool CF-2 when machining (sold separately)