Grey Pneumatic impact sockets are designed for professional tool users. They are specifically engineered for use with impact tools, utilizing the most up-to-date industry specifications. Grey Pneumatic Impact sockets are made from high-quality alloy steel (chrome-molybdenum). Thorough and precise heat treatment ensures the correct balance of strength and durability. Grey Pneumatic Impact sockets are tested to the highest specifications to deliver exceptional performance. Benefits of the Grey Pneumatic Impact Socket "High Torque" Drive. Increased Strength: Transfers pressure from the thinner part of the socket wall to the thicker section, resulting in greater strength. Increased Torque: Allows up to 20% more torque to be applied than standard hex impact sockets. Easier Access to Tight Areas: The shift in pressure allows us to reduce the socket wall thickness, increasing access to tight areas. Reduced Wear: Impact sockets grip the fastener across a wider contact area, reducing the possibility of fastener rounding. Extension: 3". Socket Retaining Device: Friction Ball. Drive End Diameter: 1.73". Length: 2.95 in.