Proto 3/8" Drive Extension Bar Impact Steel Black 12"L 7178P

• Use extensions to gain access to fasteners in locations that would otherwise be difficult to reach.
• Male square is oriented in line with female squares for use with fixed head torque wrenches.
• 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 tool on any of the socket drive walls.
• Size stamped on tool for easy identification.
• Side locking hole.

Specifications

DRIVE SIZE [IN]3/8

OVERALL LENGTH [IN]12

WEIGHT [LBS]0.64

FINISH Black Oxide

SPECIFICATION ASME ASME B107.110-2012

SPECIFICATION AS SAE AS4984A