Tekton Impact Socket Set SID91112 - 3/8 in Drive, 12-Point, 15-Piece (1/4-1 in), Rails

Includes 15-pc. 3/8 inch drive 12-point impact sockets: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in.; 18 inch socket rail Size is marked both with a high-visibility laser marking and a permanent stamped marking that won't wear off 12-point sockets provide an exact fit for 12-point fasteners Radiused corners prevent fastener round-off by applying force to a fastener's flat sides, rather than its corners Meets a minimum of 1.3 times the ANSI/ASME standard for proof torque Twist-to-Lock Socket Rail organizes and securely holds socket in place-both for in your toolbox and on the go.