Grey Pneumatic sockets feature increased strength torque easier access to tight areas and reduced wear. They are designed to work specifically with impact tools.Features. The impact sockets high torque drive provides increased strength through the transfer of pressure from the thinnest part of the socket wall toward the thicker section.. The sockets feature 20 percent more torque than on standard hex impact sockets.. There is an increase to tight areas through pressure shift to reduce the socket wall thickness.. There is a reduced wear and chance of rounding off fasteners by the grip the sockets provide on the fastener across a broader contact area.Specifications. Brand - Grey Pneumatic.. Socket Drive Size - 38 in.. Socket Size - 916 in.. System of Measurement - Fractional.. Weight - 0.1800 lbs.. Length - Deep.. Dimensions - Drive End.79in. Socket End .79in. Bolt Clearance Depth 2.06in. Hex Depth .98in. Length 2.56in.