Typically 5mm thinner than a regular spanner, cone nut spanners slide between the hub and the axle locking nut, onto the cone nut to allow for the hub bearings to be correctly adjusted. This set of cone nut spanners is ideal for use by both the home or shop mechanic. It includes sizes 13mm to 20mm, with each having a long handle with comfort grip, allowing enough leverage to be applied to cope with tight or corroded cone and axle lock nuts.