Paramount PAR37154 Hex Key 2.50mm Long Arm Steel

Product Description

The PARAMOUNT PAR37154 is a long-arm hex key designed for driving hex fasteners in confined or recessed locations where a standard-length tool cannot reach. The 2.50 mm hex tip fits metric socket-head cap screws and set screws commonly found in mechanical assemblies, HVAC equipment, pool equipment, and general trade applications. Built from steel for durability, the long arm provides added reach while the short arm delivers the torque needed to break fasteners loose. Overall length is 3-31/64 inches. Suitable for professional tradespeople and technicians who require a reliable metric hex driver for routine service and installation work.

This hex key is appropriate for any trade setting where 2.50 mm metric hex fasteners are encountered, including HVAC unit servicing, pump and motor assembly, pool equipment installation, and light mechanical work. The long-arm configuration is especially useful for reaching fasteners recessed within housings or tight panel enclosures. Sold individually, with a minimum order quantity of 10 units, making it practical for stocking in a service van or shop tool inventory.

Key Features

• 2.50 mm hex tip for metric socket-head and set screw applications
• Long-arm style provides extended reach into recessed or confined fastener locations
• 3-31/64 inch overall length fits compact tool pouches and service kits
• Steel construction for strength and resistance to rounding under torque
• Hex end type on both arms for consistent driving engagement

Compatibility

Designed for use with 2.50 mm metric hex fasteners including socket-head cap screws and set screws in standard trade and mechanical service applications.

Installation Notes

De-energize and lock out equipment before servicing any fasteners on electrical or mechanical assemblies. Confirm the hex size matches the fastener socket before applying torque to avoid rounding the drive recess. Use the long arm for initial engagement and reach, then switch to the short arm for final tightening where greater torque is needed. Inspect the tool for wear or deformation before each use.