Paramount PAR37250 Hex Key 1.50mm Short Arm

Product Description

The PARAMOUNT PAR37250 is a short-arm hex key sized at 1.50 millimeters, designed for driving hex fasteners in confined or close-clearance spaces. The overall length measures 1-45/64 inches (44.00 millimeters), making it well suited for applications where a standard long-arm key would interfere with surrounding components. The hex end configuration provides direct drive engagement with socket head cap screws and set screws common in HVAC equipment, plumbing fixtures, pool equipment assemblies, and general mechanical installations. Installation and maintenance technicians across multiple trades carry short-arm keys as part of standard hand-tool sets for accessing fasteners in tight panel interiors and equipment housings.

This hex key is intended for metric fastener applications requiring a 1.50 mm hex drive. It fits typical use cases in light mechanical assembly, equipment servicing, and component adjustment work encountered in residential and commercial trade environments. The short arm style is particularly useful when torque requirements are modest and access clearance is the limiting factor. It is packaged individually and sold in multiples of 10 units minimum.

Key Features

• 1.50 mm metric hex drive size for precise fastener engagement
• Short arm style for use in restricted-clearance work areas
• Hex end type provides direct socket engagement
• Compact overall length of 1-45/64 inches (44.00 millimeters)
• Lightweight at 0.002 pounds — minimal added weight to a tool kit

Compatibility

Designed for use with 1.50 mm hex socket fasteners in metric applications. Compatible with socket head cap screws and set screws conforming to metric hex drive standards.

Installation Notes

Use is appropriate for any trade professional requiring hand-tool access to 1.50 mm hex fasteners during equipment installation or service. Always de-energize and lock out electrical equipment before accessing internal fasteners on powered assemblies. Short-arm hex keys provide higher torque resistance than long-arm keys of the same size but offer reduced reach — confirm access geometry before use. Do not apply excessive force to small hex keys, as this can round the fastener socket or deform the key.