When we're upgrading our workshops, we like to take the time to invest in shop-quality tools that will last the test of time. That's what you'll find with the CNC Alloy Bottom Bracket Tool. Lezyne constructed it from premium 7075-T6 aluminum with a sleek anodized black finish. It's compatible with a socket wrench or 32-millimeter open-end wrench, and it's useful to everyone from a bike shop mechanic to the recreational cyclist. Features include a knurled circumference and an 8-spline Shimano cap tool (39mm, 41mm, 44mm) or a 16mm hex tool (46mm).