Wolf Tooth Bottom Bracket Tool - BBS4912 12 Notch 49mm MFPN=PDL-WF-LG-ESP Black oxide bearings

Black oxide bearings

Ultra light weight: 10

For 11 speed chains

Not caustic and is non-toxic

set-up grid and cut marks

Wolf Tooth Bottom Bracket Tool - BBS4912 12 Notch 49mm MFPN=PDL-WF-LG-ESP Black oxide bearingsWolf Tooth Bottom Bracket Tool BBS4912 12 Notch 49mm. Wolf Tooth bottom bracket sockets are tools for installation and removal of external cup bottom brackets. They are machined here in Minnesota with 7075 T6 aluminum. Large finger notches so you can start threading the cups by hand 3 8" square socket or 1" hex for ratchet torque wrench Most sockets have either a Shimano bearing preload tool or a 16mm hex for use with Race Face Cinch cranksets Steel