Grey Pneumatic 1143ql 3/8 Dr 3 in Locking Extension

Product Description

The GREY PNEUMATIC 1143ql is a 3/8 inch drive locking extension designed for impact use. It provides a secure, locking connection between the drive tool and socket, reducing the chance of the extension backing off during high-torque operation. Built for use with impact wrenches and impact drivers, this extension suits automotive, fleet, and heavy equipment service work. The 3 inch length gives technicians clearance in tight engine bays and undercarriage access points without requiring a deep-reach tool setup.

This locking impact extension fits standard 3/8 inch drive impact wrenches and is well suited for automotive service, truck fleet maintenance, and general mechanical work. The locking collar mechanism keeps the extension positively retained on the drive anvil, which is especially useful in overhead or awkward-angle applications where a dropped extension is a real hazard. It is appropriate for both shop and mobile service use.

Key Features

• 3/8 inch drive sizing compatible with standard impact wrenches and ratchets
• 3 inch length provides useful reach in confined or recessed fastener locations
• Locking mechanism retains extension on drive anvil during impact operation
• Impact-rated construction handles the torque demands of pneumatic and electric impact tools
• Packaged in a poly bag with barcode for easy inventory and point-of-sale handling

Compatibility

Designed as a standard 3/8 inch drive locking impact extension compatible with 3/8 inch drive impact wrenches, air ratchets, and hand ratchets from major tool manufacturers.

Installation Notes

Installation is performed by automotive technicians and mechanical service professionals. Engage the locking collar fully before use to ensure the extension is positively secured to the drive anvil. Always ensure the fastener socket is fully seated on the extension square drive before applying torque. Inspect the locking mechanism for wear periodically, and replace the extension if the lock no longer engages with positive retention.

Technical Specifications

• Drive Size: 3/8 inch
• Extension Length: 3 inches
• Type: Locking Impact Extension
• Packaging: Poly bag with barcode
• Country of Origin: Taiwan

Standard Information

• Brand: GREY PNEUMATIC
• Manufacturer Part Number: 1143ql