MUQZI Bottom Bracket Install Removal Tool 12/16-Notch Fits 39mm/40.5mm/44mm/45.6-46.6mm Outer Diameter BB Cups

How to Choose the Right Bottom Bracket Tool1. Check the number of splines or notches. 2. Measure the outer diameter in mm. 3. Example: 16 notches + 41 mm outer diameter = BB41-16 toolMUQZI Bottom Bracket ToolMade from aluminum alloy, this bottom bracket tool features precision-machined notch engagement for compatible bottom bracket cups.It provides a secure grip to help prevent slipping, making hard-to-loosen bottom brackets easier and less effort to remove. It can be used with a 1/2-inch drive ratchet, torque wrench, or an adjustable wrench for convenient bike maintenance.