Williams Comfort Products JHWISSXM918 Flextension 1/2 in

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISSXM918 is a Flextension drive extension and socket combination designed for use in engine assembly, heavy equipment manufacturing, and mechanical repair applications. The integrated, non-removable design permanently bonds the drive extension and socket, eliminating the risk of the socket separating from the extension during continuous operation. The socket features a lobular SUPERTORQUE opening that grips fastener flats rather than corners, reducing fastener deformation under high torque. The drive end includes a 7/32-inch cross hole bevel for easier engagement. Maximum working torque is rated at 160 ft-lbs (1,920 in-lbs / 217 Nm).

This Flextension is intended for use with hand tools and power tools operating in impulse or direct drive modes. It is not rated for impact tool use. The 18 MM, 6-point socket size and 1/2-inch drive make it well-suited for fastener applications in automotive, diesel, and industrial equipment service environments. The 6-point socket geometry delivers reliable torque transfer on standard hex fasteners and reduces the risk of rounding in high-cycle production and repair settings.

Key Features

• Integrated non-removable extension and socket design prevents separation during use
• SUPERTORQUE lobular socket opening reduces fastener deformation under load
• Socket retention pin is TIG welded for full rotational power transfer
• Drive end has a 7/32-inch cross hole bevel for easier drive engagement
• Up to 30-degree angle offset capability
• Maximum working torque: 160 ft-lbs / 1,920 in-lbs / 217 Nm
• Black oxide finish for corrosion resistance and durability
• Made in the U.S.A.

Compatibility

Designed for use with 1/2-inch drive hand tools and power tools (impulse or direct drive). Not compatible with impact tools. Suitable for 18 MM hex fastener applications in engine assembly, heavy equipment, and industrial repair environments.

Installation Notes

This Flextension is intended for installation by mechanics and industrial assemblers working on engine and heavy equipment fasteners. Ensure the tool is used only with hand or direct-drive power tools — impact tool use is explicitly not permitted and may cause damage or failure. Disengage all power sources and secure the equipment before beginning fastener work. Confirm the 1/2-inch drive engagement is fully seated before applying torque.

Technical Specifications

• Drive Size: 1/2 inch
• Socket Size: 18 MM
• Point Configuration: 6-Point
• Maximum Working Torque: 160 ft-lbs / 1,920 in-lbs / 217 Nm
• Angle Offset: Up to 30 degrees
• Drive End Cross Hole Bevel: 7/32 inch
• Finish: Black Oxide
• Weight: 0.7 pounds
• Country of Origin: USA
• UPC: 662459372628

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISSXM918