
Park Tool 691/692
The Park Tool 691/692 is a replacement bottom bracket tap for the BTS-1 tapping set, cutting 1.370 x 24 TPI threads. It suits professional shops chasing or refreshing English-threaded bottom bracket shells with the BTS-1 system.
- Misc: 1.370 x 24TPI, Right (Park #691)
Pairs well with

Park Tool 691/692
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