The Park Tool Bottom Bracket Tool BBT-32 is built for the specific job of installing and removing bottom brackets with a 32mm diameter and 20-spline interface — a standard found across a wide range of crankset and BB combinations. It's designed to clear oversized spindles, which means you're not fighting the tool when it matters most. Drive it with a 32mm socket or a standard adjustable wrench, whichever you have to hand. Park Tool's BBT-32 is the kind of workshop tool that earns its place on the bench through reliability rather than novelty. Clean engagement with the splines means less risk of rounding out a stubborn bottom bracket during removal — the right tool doing exactly the job it was made for. Park Tool Bottom Bracket Tool Specs at a Glance Interface: 32mm diameter, 20-spline Compatible with: 32mm spline-drive bottom brackets Clears oversized spindles Drive options: 32mm socket or adjustable wrench Manufacturer: Park Tool