Grey Pneumatic 2021UM 1/2 in. Drive x 21mm Standard Universal

Features and Benefits: Made of high quality steel (chrome-molybdenum) Engineered specifically for use with impact tools, using the most up to date industrial specifications Made to transfer the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength Lifetime Warranty 1/2" in. Drive x 21MM Standard Universal SocketMade of high quality steel (chrome-molybdenum) Engineered specifically for use with impact tools, using the most up to date industrial specifications Made to transfer the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength Lifetime Warranty