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The WILLIAMS COMFORT PRODUCTS JHWISFX416 is a 1/2-inch, 6-point Flextension — an integrated socket extension designed for engine work, heavy equipment assembly, and industrial repair applications. Unlike standard hand-tool ball-retained sockets, this unit combines the drive extension and socket into a single non-removable assembly, eliminating disconnection during continuous operation. The socket retention pin is TIG welded to deliver full rotational power through the socket. Maximum working torque is rated at 160 ft-lbs (1,920 in-lbs / 217 Nm). Drive end features a 7/32-inch cross-hole bevel for ease of positioning.
The JHWISFX416 is intended for use in manufacturing, assembly line, and equipment repair environments where uninterrupted fastener driving is critical. It is rated for use with hand tools and power tools including impulse and direct-drive tools. Note that this Flextension is NOT rated for impact tool use. The up-to-30-degree angle offset capability allows access to fasteners in tight or angled locations common in engine bays and heavy equipment frames. Licensed trades and production mechanics working in automotive or industrial facilities will find this extension suited to high-repetition, torque-critical tasks.
Designed as an OEM-style industrial Flextension for use with 3/8-inch drive hand tools and power tools (impulse or direct drive) requiring a 1/2-inch, 6-point socket. Not compatible with impact tools.
Installation and use should be performed by qualified mechanics or trades professionals familiar with fastener torque requirements. Always ensure the tool and fastener are properly engaged before applying torque. Do not exceed the maximum rated working torque of 160 ft-lbs. This Flextension is not rated for impact tools — use with impact drivers may cause damage to the unit or injury.
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