Proto Impact Socket Extension, Alloy Steel, Black Oxide, Overall Length 7", Input Drive Size 3/4"

Proto® impact socket extension helps gain access to fasteners in difficult or hard-to-reach locations. Male square is oriented in-line with female squares for use with fixed head torque wrenches. The full chamfer at drive opening (when applicable) for easy engagement with drive tools. Drive end chamfer and four detents help provide quick positive engagement with drive tools. Features 2 through holes and a groove to accept a Proto retaining ring, pin, or O-ring to help secure extension to the drive tool anvil.