Lezyne CNC Alloy BB Tool The CNC Alloy Bottom Bracket Tool is a rugged, thoroughly engineered shop-quality bike tool that combines classic Lezyne styling with advanced functionality. Machined from premium 7075-T6 aluminum and finished with a sleek anodized black coating, this tool is perfect for everyone from professional bike mechanics to recreational cyclists looking to enhance their home workshop. The CNC Alloy BB Tool is compatible with our CNC ROD, as well as a 32-millimeter socket or open-end wrench. It features a knurled circumference for extra grip when hand-tightening or loosening components. Additionally, it includes a 16mm Allen for the crank-arm bolt. Specifications: - Size: 39mm 16 Spline Weight: 100g Dimensions: 50.8mm x 50.8mm x 40.3mm - Size: 41mm 16 Spline Weight: 96g Dimensions: 50.8mm x 50.8mm x 40.3mm - Size: 44mm 16 Spline Weight: 111g Dimensions: 56mm x 56mm x 40.3mm - Size: 46mm 12 Spline Weight: 111g Dimensions: 56mm x 56mm x 40.3mm