Williams Comfort Products JHWISFXTM415 Flextension 3/8 in 15 Mm

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISFXTM415 is a 15 MM, 6-point Flextension — an integrated drive extension and socket combination designed for engine assembly, heavy equipment manufacturing, and mechanical repair. Unlike conventional ball-retained socket-and-extension setups, the socket is permanently joined to the extension shaft, eliminating disconnection during continuous operation. The drive end accepts a 3/8 inch drive and features a 7/32 inch cross hole bevel for easy handling. Maximum working torque is rated at 160 ft-lbs (1,920 in-lbs / 217 Nm). A black oxide finish provides corrosion resistance under demanding shop conditions.

This Flextension is suited for production assembly lines, fleet maintenance shops, and heavy equipment service environments where reliable fastener engagement and uninterrupted workflow are priorities. The up-to-30-degree angle offset allows access to fasteners in confined or obstructed locations without repositioning the tool setup. It is designed for use with hand tools and power tools running impulse or direct-drive operation. It is not rated for impact tool use. Sold individually.

Key Features

• Integrated non-removable socket and extension design prevents socket separation during use
• Socket retention pin is TIG welded, delivering full rotational power transfer to the socket
• SUPERTORQUE lobular socket opening increases turning power while reducing fastener deformation
• Up to 30 degrees of angle offset for access in tight or angled spaces
• 7/32 inch cross hole bevel on drive end for ease of use with hand and power tools
• Black oxide finish for corrosion and wear resistance
• Made in the U.S.A.

Compatibility

Designed for use with 3/8 inch drive hand tools and impulse or direct-drive power tools. Not compatible with impact tools. Other lengths and socket sizes are available by special order through Snap-on Industrial Brands representatives.

Installation Notes

Installation and use of this Flextension should be performed by qualified mechanics or assembly technicians familiar with drive tool systems. Verify the drive tool is powered down or in a safe state before connecting or removing the Flextension. Do not exceed the maximum working torque of 160 ft-lbs. This tool is not rated for impact tools — use with impact wrenches or impact drivers may cause damage or personal injury.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 15 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: 7/32 inch bevel
• Finish: Black Oxide
• Weight: 0.45 pounds
• Country of Origin: U.S.A.
• Sold As: Each
• UPC: 662459372123

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISFXTM415