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)
Description
Prep your new frame or save your old one with the precision Park Tool BTS-1 Bottom Bracket Tapping and Facing Set. First, the BTS-1 taps and cleans the threads in the bottom bracket shell for perfect threading or to fix your last huge mistake. Then it uses the taps as guides to clean up the faces of the bottom bracket shell.
