[We are working on Direct Duty Paid model -DDP]. PROTO J10607 – 1 in Drive, 7-3/8 in Impact Extension. Designed to gain access to fasteners in tight or hard-to-reach locations. The male square drive stays in-line with the female socket drive, making it compatible with fixed-head torque wrenches. Full chamfer at the drive opening (where applicable) facilitates quick and easy engagement with drive tools. Includes four detents on the drive wall for positive socket retention and quick engagement. Stamped size marking for easy reference when selecting the tool. Side locking hole to accommodate retaining pins or rings for secure socket retention. Drive Size: 1 inch (Input and Output). Overall Length: 7-3/8 in (7.375 in). Weight: approximately 3.54 lb (1.6 kg).