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The WILLIAMS COMFORT PRODUCTS 10107 is a 7-piece short-arm hex key set designed for fastening and loosening hex socket screws and cap bolts in tight-clearance applications. Short-arm hex keys provide greater torque leverage in confined spaces where a long-arm set cannot fit. This set is a practical hand tool for HVAC technicians, plumbers, electricians, and mechanical trades who routinely work inside equipment cabinets, panels, and mechanical assemblies. The compact form factor makes it easy to carry on a service van or store in a standard tool bag.
This hex key set suits residential and light commercial service work where Allen-head fasteners are common, including access panel hardware, equipment mounting brackets, fan blade set screws, and valve packing gland fittings. Short-arm sets are particularly useful when working inside furnace cabinets, air handler compartments, and electrical enclosures where swing clearance is limited.
Designed as a general-purpose short-arm hex key set suitable for standard hex socket fasteners encountered in HVAC, plumbing, electrical, and mechanical trade service work.
No power shutoff is required for hand tool use, but always de-energize and lock out equipment before working inside electrical panels or live mechanical assemblies. Select the correctly sized hex key for the fastener to avoid rounding the socket. Follow applicable service procedures and equipment manufacturer guidelines when disassembling or reassembling components.
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