Park Tool BB BBT-135-12 12-NOTCHx57.5mm STL BK (SKU 611362)

Park Tool's BBT-135-12 fits 12-notch threaded bottom bracket tool fittings with a 48 to 50mm major diameter and a 46.3mm minor diameter, including Praxis Works M30. It has a 57.5mm outer diameter at the point of engagement, and the 3/8-inch drive, 1-inch and 36mm wrench flats give you several ways to turn it. Not rated for use with impact drivers.

Features

• Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 48–50 mm and a minor diameter (inside of notches) of 46.3 mm, including Praxis Works M30
• Internal clearance: 42 mm (1.654") depth (from tool face) x 30.44 mm (1.198") diameter
• 57.5 mm (2.264") outer diameter at point of engagement
• 3/8" drive, 1" and 36mm wrench flats for multiple tool options
• Not rated for use with impact drivers

Specifications