The topeak threadless saw guide is an absolute necessity when looking to cut down your steerer tubes providing an accurate and straight cut you will never look back once you start using this tool works on 1 1 18 and 1 14 threadless steerer tubes and includes 2 mm saw guide space for carbon saw blades topeak threadless saw guide features includes 2mm saw guide space for carbon saw blades hardened steel tool 65x39x11cm 246g