Armstrong Socket Set, Measurement System: Imperial, 15 Piece, 6 Points, Included Socket Size: 3/8 to 1-1/4 in, 1/2 in Drive, Socket Rail, Specifications Met: ASME B107.1-2002, Alloy Steel
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
