Remove and install 3 1/4 8 point axle nuts without the risk of flaring or rounding out your socket. CNC machined from billet, high strength alloy steel Engineered for use with up to a 3/4 impact wrench 3/4 drive Commonly found on class 6-8 transportation trucks and equipment. (Kenworth, Peterbilt, Freightliner, Mack, Volvo etc.)