Paramount PAR37237 Short Arm Hex Key Set 13 Piece

Product Description

The PARAMOUNT PAR37237 is a 13-piece short arm L-key hex key set covering a hex size range of 0.050 to 3/8 inches in inch measurements. Each key is formed from steel for durability under the torque demands of mechanical assembly and service work. The short arm L-key profile gives techs close-clearance access in tight spaces while still delivering solid torque through the long arm. The set stores in a plastic holder that keeps all 13 sizes organized and ready on the truck or bench. This type of set is a standard hand-tool addition for HVAC, plumbing, and electrical service technicians who regularly work with set screws, access panels, and equipment covers.

The PAR37237 is suited for residential and light commercial service applications where inch-series fasteners are standard. Common tasks include tightening set screws on motor couplings, blower wheel hubs, valve stems, and terminal covers. The inch-drive hex range from 0.050 to 3/8 inches covers the majority of set screw sizes found across HVAC equipment, plumbing fixtures, and electrical enclosure hardware. The plastic holder makes it practical for field use, keeping sizes visible and preventing loss during service calls.

Key Features

• 13-piece set covers hex sizes from 0.050 to 3/8 inches in inch increments
• Short arm L-key design for access in confined spaces
• Steel construction for durability under repeated service use
• Plastic holder keeps all sizes organized and indexed
• Inch measurement type suits standard domestic equipment fasteners

Compatibility

Designed as a general-purpose inch-series hex key set for use with set screws and hex fasteners commonly found in HVAC, plumbing, electrical, and mechanical service applications.

Installation Notes

Hex key sets are used by HVAC technicians, plumbers, and electricians as general hand tools during equipment installation and service. Power down or de-energize equipment before loosening or tightening set screws on rotating components. Use the long arm for initial engagement and the short arm when additional torque is needed in tight clearances. Inspect keys periodically for rounding or deformation and replace any worn keys before use to avoid fastener damage.