Paramount PAR14139 31-piece Combo Hex Key Set

Product Description

The PARAMOUNT PAR14139 is a 31-piece combination hex key set that pairs L-wrench and fold-up handle styles in a single kit covering both inch and metric fastener sizes. The set spans hex sizes from 0.050 to 3/8 inches on the inch side and 1.5 to 10 mm on the metric side, making it a practical all-in-one solution for multi-system service work. Keys are constructed from steel for durability across repeated use. The kit ships in a blister pack and is well-suited for HVAC technicians, plumbers, electricians, and pool service professionals who routinely encounter both inch and metric set-screw and hex-bolt fasteners across equipment and fixtures.

This hex key set is appropriate for use in residential and light commercial service environments. It covers the fastener range commonly found on HVAC equipment panels, fan blade set screws, motor mounts, valve bodies, electrical enclosures, and pool equipment components. The combination of L-wrench and fold-up handle formats allows the technician to apply torque in tight or open spaces as the application demands. No additional tools are needed beyond what is included in the set.

Key Features

• 31-piece set combining L-wrench and fold-up handle formats in one kit
• Inch hex range: 0.050 to 3/8 inches across the full standard size progression
• Metric hex range: 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm sizes included
• Steel construction for strength and wear resistance
• Blister pack packaging keeps the full set organized and protected
• Covers both inch and metric fasteners, reducing the need for separate sets

Compatibility

Designed as a general-purpose hex key set suitable for service and installation work on HVAC, plumbing, electrical, and pool equipment that uses standard inch or metric hex fasteners.

Installation Notes

Hex keys should be used with the appropriate size to avoid rounding fastener heads — confirm the fit before applying torque. When servicing energized equipment, de-energize all circuits and follow applicable lockout/tagout procedures before accessing fasteners on electrical enclosures or motor components. Shut off gas supply and relieve system pressure before performing fastener service on pressurized HVAC or plumbing assemblies.