It is perfect for efficiently tightening axle nuts and bolts. The spindle nut socket set includes socket sizes 1″, 1-1/8″, 1-1/4″, 1-3/8″, 1-1/2″, 1-5/8″, 1-3/4″, 1-7/8″, and 2″, perfect for tightening axle nuts and bolts efficiently.