Wheels Manufacturing Ruler Axle Cone Thread Gauge Introducing the Axle Ruler Pro by Wheels Manufacturing: the precision tool for bike mechanics. Simplify axle measurements with its comprehensive male and female thread pitch options. Its self-centering axle measurement channel and dual inch/centimeter ruler cater to your preferences. Peg board compatible for easy storage. Accuracy without the fuss. Features Hard anodized 6061 aluminum Male and Female measurements M9x1 M9x26 3/8"x24 3/8"x26 M10x1 M10x26 M12x1 M12x1. 25 M12x1. 5 M12x1. 75 M14x1. 5 M15x1. 0 M15x1. 5Ruler Imperial 0-11" - Metric 0-28cm Peg board compatible Use with Solid and Thru Axles Made in the USA | Wheels Manufacturing | Axle Ruler Pro Gauge Kit Kit