A rugged, thoroughly engineered shop-quality bike bottom bracket tool, the CNC Alloy Bottom Bracket tool offers classic Lezyne styling—and a whole lot more. Machined from premium 7075-T6 aluminum with a slick anodized black finish, the CNC Alloy BB Tool is a premium shop tool for everyone from professional bike mechanics to recreational cyclists looking to upgrade their home workshop. It’s compatible with our CNC ROD, as well as a 32-millimeter socket or 32-millimeter open-end wrench, and features a knurled circumference for extra grip when hand-tightening/loosening. Also features an 8-spline Shimano crank-arm preload tool.