Williams Comfort Products JHWISSXM410 Flextension 1/2 in Drive 10 Mm

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISSXM410 is a 1/2 inch drive, 10 MM, 6-point Flextension — a combined drive extension and socket unit designed for engine and heavy equipment manufacturing, assembly, and repair work. The integrated, non-removable socket design eliminates the risk of the socket separating from the extension mid-task, which keeps work moving without interruption. The socket features a SUPERTORQUE lobular opening that applies turning force to the flat faces of a fastener rather than the corners, reducing fastener deformation under load. Maximum working torque is rated at 160 ft-lbs (1,920 in-lbs / 217 Nm). Built for use with hand tools and power tools including impulse and direct-drive tools.

The JHWISSXM410 is suited for professional technicians working in engine assembly lines, heavy equipment repair bays, and industrial manufacturing environments where socket retention and consistent torque transfer are critical. The unit accommodates up to 30 degrees of angle offset, allowing access to fasteners in tight or angled locations. This Flextension is compatible with hand tools and power tools. It is not rated for impact tool use. Other lengths and socket sizes are available by special order through authorized Snap-on Industrial Brands channels.

Key Features

• Integrated non-removable socket and extension design prevents socket disconnection during use
• SUPERTORQUE lobular socket opening reduces fastener deformation under load
• Socket retention pin is TIG welded for full rotation power transfer
• Up to 30 degrees of angle offset for access in tight spaces
• Drive end features a 7/32 inch cross hole bevel for ease of use
• Durable black oxide finish
• Made in the U.S.A.

Compatibility

Designed for use with hand tools and power tools including impulse and direct-drive tools. Not for use with impact tools.

Installation Notes

Installation and use of this Flextension should be performed by qualified mechanical or industrial technicians familiar with torque tool requirements for the application. Ensure the tool and fastener are properly aligned before applying torque to avoid side-loading the extension. Do not exceed the rated maximum working torque of 160 ft-lbs. This tool is not approved for impact tool use and should never be used with an impact wrench or impact driver.

Technical Specifications

• Drive Size: 1/2 inch
• Socket Size: 10 MM
• Point Count: 6-Point
• 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: 0.4 pounds
• Country of Origin: USA

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISSXM410