Williams Comfort Products JHWISFXT1216 Flextension 3/8 Drive

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISFXT1216 is a Flextension drive extension designed for high-demand industrial and mechanical applications. It combines the drive extension and socket into a single integrated, non-removable unit, eliminating the risk of socket separation during continuous operation. The drive end accepts a 3/8 inch drive and the socket size is 1/2 inch. The socket retention pin is TIG welded to the drive shaft, delivering full rotational power transfer. This tool is intended for use with hand tools and power tools such as impulse or direct-drive units. It is not rated for impact tool use. Technicians in engine assembly, heavy equipment manufacturing, and repair environments rely on this design for reliable, uninterrupted work cycles.

The JHWISFXT1216 Flextension is suited for engine assembly lines, heavy equipment repair bays, and production environments where socket drop-off creates costly downtime. The integrated socket design is especially valuable in confined or overhead work positions where retrieving a dropped socket is difficult or impossible. The 30-degree angle offset capability allows technicians to reach fasteners that a standard straight extension cannot access. This unit is sold individually and is compatible with hand-operated and direct-drive or impulse power tools.

Key Features

• Integrated non-removable socket and extension design prevents socket separation during use
• Socket retention pin is TIG welded for full rotation power transfer to the socket
• SUPERTORQUE lobular socket openings reduce fastener deformation under high torque
• Up to 30-degree angle offset for reaching fasteners in restricted areas
• Drive end features a 7/32 inch cross hole bevel for easier engagement
• Maximum working torque: 160 ft-lbs / 1,920 in-lbs / 217 Nm
• Durable black oxide finish for corrosion resistance
• Made in the U.S.A.

Compatibility

Designed for use with hand tools and power tools including impulse and direct-drive tools with a 3/8 inch drive interface. Not designed or rated for impact tool use.

Installation Notes

This Flextension is installed by mechanics and assembly technicians using standard 3/8 inch drive hand or power tools. Before use, confirm the drive tool is not an impact-rated unit, as impact use is not approved for this product. Inspect the TIG-welded retention pin and integrated socket for any visible damage before each use. Torque application should remain within the rated maximum of 160 ft-lbs to prevent tool damage or fastener failure.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 1/2 inch
• Maximum Working Torque: 160 ft-lbs / 1,920 in-lbs / 217 Nm
• Maximum Angle Offset: 30 degrees
• Drive End Cross Hole Bevel: 7/32 inch
• Finish: Black Oxide
• Weight: 0.85 pounds
• Country of Origin: U.S.A.
• UPC: 662459369956

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISFXT1216