The TOOPRE TL-S25 DUB Crank Cap Removal Tool is a precision tool designed for installing and removing SRAM DUB BB30 crankset side caps. Made from 45# high-carbon steel with hardened heat treatment and CNC machining, it offers high strength, accurate fitment, and long-lasting durability. The electroplated finish helps resist rust, while smooth chamfered edges provide safe handling. Designed for use with a 21mm wrench, it is ideal for professional bike shops and home bicycle maintenance.