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The WILLIAMS COMFORT PRODUCTS MWS-18A is an 18-piece combination wrench set built for trade professionals who need reliable hand tools on the job. Each wrench in the set features an open end on one side and a box end on the other, giving technicians two engagement options for fasteners in tight or open spaces. This set is suited for HVAC, plumbing, electrical, and general mechanical service work where a full range of wrench sizes is required. At 9.864 pounds, the set provides substantial coverage for a wide variety of fastener sizes.
This combination wrench set is a practical addition to any service van or tool bag. It is appropriate for residential and light commercial service work, including equipment installation, maintenance, and repair across multiple trades. Technicians working on air handlers, condensing units, boilers, water heaters, and related mechanical equipment will find an 18-piece set covers the most common fastener sizes encountered in the field.
Designed as a general-purpose combination wrench set for use across residential and commercial mechanical service applications.
Combination wrench sets are a standard hand tool used by HVAC technicians, plumbers, electricians, and general service mechanics. Always de-energize equipment and shut off fluid or gas supply before using wrenches on mechanical connections. Select the correct wrench size to avoid rounding fastener heads. Follow all applicable codes and manufacturer torque guidance when tightening threaded connections.
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