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The WILLIAMS COMFORT PRODUCTS QYOM27A is a 27 MM open-end torque wrench head designed for precise fastener installation in demanding trade applications. It features a Y-type shank with a 0.560-inch shank diameter, allowing it to mount to compatible torque wrench drives for controlled, measurable tightening. The head is rated to a maximum torque of 160 foot-pounds, making it suitable for heavy-duty bolted connections encountered in HVAC, plumbing, and mechanical contracting work. Technicians working with metric fasteners in confined or awkward spaces will find the open-end design practical for applications where a standard socket cannot engage.
This torque wrench head is intended for use in commercial and industrial service settings where metric fastener specifications must be met with accuracy. It suits licensed mechanical contractors, HVAC installers, and pipefitters who need interchangeable torque tooling for equipment installation and maintenance. The 27 MM open-end sizing is commonly encountered on refrigerant line fittings, gas train components, and structural hardware on large mechanical equipment.
Designed as a replacement or supplemental open-end torque wrench head for use with Y-shank torque wrench drives accepting a 0.560-inch shank.
This torque wrench head should be installed onto the drive wrench with the shank fully seated before applying load. Always verify the torque wrench drive is rated to at least 160 foot-pounds before use. De-energize and depressurize the system being serviced before tightening fasteners. Follow applicable mechanical codes and equipment manufacturer torque specifications for the fastener being tightened.
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