Paramount PAR37164 Hex Key 5 Mm Long Arm

Product Description

The PARAMOUNT PAR37164 is a 5.00 mm metric hex key with a long-arm configuration and hex end, built for use in trade and mechanical service applications. Manufactured from steel, this L-style wrench delivers the leverage needed for driving socket head cap screws and set screws in confined or deep-access locations. The long arm measures 4-45/64 inches overall length, which provides extended reach and greater torque compared to standard short-arm keys. It is a standard hand tool kept on the bench or in the service bag of HVAC technicians, plumbers, electricians, and mechanical contractors who regularly work with metric fasteners on equipment panels, valve bodies, and component assemblies.

This hex key is suited for any trade setting where metric socket head fasteners are encountered. Residential and commercial applications both apply, including equipment installation, routine maintenance, and component replacement tasks. The 5.00 mm size is a common metric dimension found on set screws for shaft collars, fan blades, and motor mounts. The long-arm design allows the short end to be used for high-torque driving while the long end handles fast spinning in low-resistance situations. This tool is sold individually but is subject to a minimum order quantity of 10 units per order.

Key Features

• 5.00 mm metric hex end for socket head cap screws and set screws
• Long-arm style provides extended reach and increased torque leverage
• Steel construction for durability in repeated service use
• 4-45/64 inches overall length for deep-access applications
• Compact individual package — minimum order quantity of 10 units

Compatibility

Designed as a standard metric hex key for use with any 5.00 mm socket head fasteners commonly found on HVAC equipment, plumbing assemblies, and mechanical components.

Installation Notes

This tool is intended for use by qualified trade professionals working with metric fasteners. Always de-energize electrical equipment and shut off fluid systems before removing or adjusting fasteners on live assemblies. Use the short end of the L-key for high-torque seating and the long end for fast rotation during run-down. Inspect the hex key for wear or rounding before applying force to avoid fastener damage.