The HP Tools Hex Axle Tool can be used to help ensure proper fork and wheel alignment to prevent any binding as well as prevent any damage to the axle. This one tool can fit many axle sizes with a 3/8" square drive on each end. Safely remove or install a front wheel with internal hex axles. Fits 17, 19, 22 and 24mm internal hex axles. 3/8" square drive on each end.