Park Tool BBT-135-12 - Steel Bottom Bracket Tool - 12-Notch 46.3mm-50mm

Constructed from precision-machined 4140 steel, the BBT-135-12 is a heavy duty tool for the removal and installation of select bicycle components with a twelve-notch tool fitting

Features

• Extra-deep body to accommodate extra-wide spindles and low-profile walls at the point of engagement for recessed lockrings
• Three methods of tool engagement: 3/8 inch drive fitting, 1 inch socket fitting, and 36 mm spanner flats, allowing you to take on even the most seized components
• Integrated threads for use with the Park Tool BBT-RS Bottom Bracket Tool Retaining System or GPS-1 Guide Pins (sold separately) to anchor the tool for added stability
• Fits 12-notch threaded bottom bracket tool fittings with an external diameter of 48–50 mm and a minor diameter (inside of notches) of 46.3 mm, including Praxis Works M30 units
• Intended for extraction; for installation, non-marking Aluminium BB tools are recommended
• Covered by Park Tool's legendary limited lifetime warranty

Specifications

• Material: Precision-Machined 4140 Steel
• Fitting Type: 12-Notch Tool Fitting
• Compatibility Specs: 48–50 mm external diameter, 46.3 mm minor diameter
• Drive/Tool Engagement: 3/8 inch drive, 1 inch socket, 36 mm spanner flats
• Usage Restriction: Not intended for impact-driver use