Williams Comfort Products JHWISFXTM413 Flextension 3/8 in 13 Mm

Product Description

The WILLIAMS COMFORT PRODUCTS JHWISFXTM413 is a 3/8 inch drive Flextension — an integrated socket extension designed for high-demand fastening work in engine and heavy equipment manufacturing, assembly, and repair environments. The socket and extension are permanently joined in a single-piece design, eliminating the risk of socket separation during continuous operation. The 13 MM, 6-point socket features a SUPERTORQUE lobular opening that delivers greater turning force while reducing the chance of deforming fastener heads. Rated for a maximum working torque of 160 ft-lbs (1,920 in-lbs / 217 Nm), this tool is built for productive, uninterrupted use by professional technicians and assemblers.

The JHWISFXTM413 is suited for automotive, engine, and heavy equipment assembly and service applications where consistent socket engagement is critical. It accommodates up to a 30-degree angle offset, giving technicians access to fasteners in tight or angled positions. The drive end includes a 7/32 inch cross hole bevel for ease of installation. This Flextension is designed for use with hand tools and power tools running impulse or direct drive — it is not rated for impact tool use. Sold individually.

Key Features

• Integrated one-piece design permanently joins socket to extension, preventing separation during operation
• SUPERTORQUE lobular socket opening increases turning power without deforming fastener heads
• Maximum working torque: 160 ft-lbs / 1,920 in-lbs / 217 Nm
• Up to 30-degree angle offset for access in restricted spaces
• TIG-welded socket retention pin delivers full rotational power transfer
• Durable black oxide finish for corrosion resistance
• Made in the U.S.A.

Compatibility

Designed for use with hand tools and power tools (impulse or direct drive) with a 3/8 inch drive. Not compatible with impact tools. Other lengths and socket sizes available by special order.

Installation Notes

Installation and use of this Flextension should be performed by qualified technicians familiar with proper torque procedures. Confirm the drive connection is fully seated before applying torque. Do not exceed the rated maximum working torque of 160 ft-lbs. This tool is not rated for impact tool use — using it with an impact driver or impact wrench may cause tool failure or injury.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 13 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: 7/32 inch bevel
• Finish: Black Oxide
• Weight: 0.55 pounds
• Country of Origin: USA
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHWISFXTM413