This tool has a built-in rotating tip for square tapered crank arms and an additional rotating tip for ISIS Drive® and Octalink® crank arms.Tools:2 totalTool Material:Hardened SteelSize (L x W x H):6.4 x ø2.2 cm2.5” x ø0.9”Weight:88 g / 3.10 oz* Octalink® is a registered trademark of Shimano® Inc.
