Proto Socket Extension, Yes Impact Rated, Measurement System: Imperial, Square Drive, 1/2 in Drive, 5 in Overall Length, Side Locking Hole Locking, Alloy Steel, Black Oxide

ITEM FEATURES:

• Use extensions to gain access to fasteners in locations that would otherwise be difficult to reach
• Male square is oriented inline with female squares for use with fixed head torque wrenches
• Full chamfer at drive opening for easy engagement with drive tools
• Constructed of high quality tool steel 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
• For use with impact sockets
• 1-piece construction ensures concentricity
• Special heat treat ensures long life
• Precision machined tips for proper fastener engagement