Paramount PAR37137 13 Piece L-key Hex Key Set

Product Description

The PARAMOUNT PAR37137 is a 13-piece L-key hex key set covering a hex size range of 0.050 to 3/8 inches, built from steel for durability in trade and shop environments. The L-key handle design provides both short-arm torque and long-arm reach, making it practical for fastener access in tight or open spaces. Keys are organized in a plastic holder that keeps the set sorted and ready for use. This type of set is standard equipment for HVAC technicians, plumbers, electricians, and general maintenance professionals who regularly work with hex-socket fasteners on equipment panels, valves, and mechanical assemblies.

This set is suited for residential and light commercial service work where inch-measurement hex fasteners are common. Typical applications include tightening or removing set screws on motor shafts, fan hubs, valve packing glands, and electrical enclosure hardware. The 13-piece range from 0.050 to 3/8 inches covers the most frequently encountered inch-series hex sizes in HVAC, plumbing, and electrical trade work. The plastic holder allows technicians to carry the full set in a tool bag without losing individual keys.

Key Features

• 13 individual L-keys spanning 0.050 to 3/8 inch hex sizes
• Steel construction for strength and resistance to rounding under torque
• L-key handle style provides both short-arm and long-arm drive options
• Plastic holder keeps all keys organized and accessible
• Inch-measurement series covers common hex fastener sizes in trade applications

Compatibility

Designed for use with standard inch-series hex socket fasteners commonly found in HVAC equipment, plumbing assemblies, and electrical enclosures.

Installation Notes

No installation is required for hand tools of this type. Select the correct key size before applying torque to avoid rounding the fastener socket. Use the short arm for higher torque and the long arm for faster rotation in accessible locations. Inspect keys periodically for wear or deformation and replace any that show signs of rounding or cracking.