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The WILLIAMS COMFORT PRODUCTS JHWRBM-0910 is a double-ended ratcheting box wrench designed for professional trade use in tight, fastener-intensive applications. The 6-point box ends open at 9 MM and 10 MM, giving technicians two common metric sizes in a single tool. At 5.5 inches overall length and a slim flat-handle profile, this wrench fits into confined spaces where standard combination wrenches cannot reach. Weighing just 0.16 pounds, it is light enough to carry on a service belt without adding bulk.
This wrench is suited for HVAC, plumbing, and mechanical service work where bolt-through fastener removal is required in restricted areas. The ratcheting action at each end allows the technician to drive or remove fasteners without repositioning the wrench on every stroke. Flipping the wrench reverses the ratchet direction, eliminating the need for a separate reversing mechanism. It is sold individually and fits standard service and installation workflows wherever metric 9 MM or 10 MM fasteners are encountered.
Designed as a general-purpose metric ratcheting box end wrench for use with 9 MM and 10 MM fasteners across residential and light commercial mechanical service applications.
This wrench is a hand tool used by licensed HVAC technicians, plumbers, and mechanical contractors during equipment installation and service. Ensure fasteners are fully seated in the box end before applying torque to avoid rounding. Always de-energize or shut off the applicable system before using hand tools in live mechanical or electrical compartments. Inspect the ratcheting mechanism for wear periodically and replace the tool if the action slips under load.
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