Williams Comfort Products JHWISFXTM610 Flextension 3/8 in

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISFXTM610 is a Flextension — an integrated drive extension and socket unit designed for high-demand fastening applications in engine assembly, heavy equipment manufacturing, and industrial repair. The socket and extension are permanently joined, eliminating the risk of socket separation during continuous operation. The 3/8 inch drive accepts standard 3/8 inch drive tooling and is sized for 10 MM fasteners with a 6-point lobular opening that delivers strong turning force without rounding fastener heads. Maximum working torque is 160 foot-pounds (1,920 inch-pounds / 217 Nm). Installed by mechanics, assembly technicians, and heavy equipment service professionals.

This Flextension is built for use with hand tools and power tools including impulse and direct-drive tools. It is not rated for impact tool use. The unit is suited for engine assembly lines, fleet maintenance bays, and heavy equipment repair shops where continuous, uninterrupted fastener driving is required. The drive end features a 7/32 inch cross-hole bevel for easier engagement, and the integrated design allows up to 30 degrees of angle offset, making it useful in confined or angled fastening positions. Other socket sizes and lengths are available by special order.

Key Features

• Integrated non-removable socket and extension design prevents socket separation during use
• SUPERTORQUE lobular socket opening increases turning power without deforming fasteners
• TIG-welded socket retention pin delivers full rotation power transfer
• Up to 30 degree angle offset for use in restricted or angled fastening locations
• 7/32 inch cross-hole bevel on drive end for easier tool engagement
• Black oxide finish for corrosion resistance and durability
• Made in the U.S.A.

Compatibility

Designed for use with 3/8 inch drive hand tools and power tools (impulse or direct-drive). Not compatible with impact tools. Sized for 10 MM, 6-point fasteners.

Installation Notes

This Flextension is installed by mechanics and assembly technicians using 3/8 inch drive hand tools or direct-drive power tools. Confirm the tool is set to the correct torque before use and do not exceed the maximum working torque of 160 foot-pounds. Do not use with impact tools, as this unit is not rated for impact applications. Ensure the drive end is fully seated in the tool before applying torque.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 10 MM
• Point Count: 6-point
• Maximum Working Torque: 160 foot-pounds / 1,920 inch-pounds / 217 Nm
• Angle Offset: Up to 30 degrees
• Drive End Cross-Hole Bevel: 7/32 inch
• Finish: Black oxide
• Weight: 0.55 pounds
• Country of Origin: USA

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISFXTM610