Armstrong 11-312 Deep Length Socket

Armstrong Socket, Deep Length, Series, Measurement System, Square Drive, Drive Size, in 3/8, Socket Size, in 3/8, 2-1/2 Overall Length, Opening Depth in, in 3/8, 0.649 Drive End Width, Socket End Width in, in 0.561, Ball Locking, Number of Points, Bolt Clearance Depth, in 0.38, High Alloy Steel, Finish

• Radius corner design engages the flats of the fastener, not the corners, providing up-to 15 to 20% more torque while reducing fastener rounding, enhancing the turning of worn fasteners
• EYE-D markings optimize size visibility, also providing SAE/metric differentiation
• Unique socket retention method, cold form ball recess, provides consistent secure retention of the socket to the drive tool eliminating the possibility of either a loose fit or tight fit