Paramount PAR37114 Hex Key 3/8 Inch Long Arm

Product Description

The PARAMOUNT PAR37114 is a long-arm hex key sized at 3/8 inch, built for driving hex socket fasteners in tight or hard-to-reach locations. Constructed from steel, it delivers the torque needed for heavy-duty fastener work without deforming the tip. The long arm style provides extended reach and increased leverage compared to standard-length keys. With an overall length of 6.75 inches, it is suited for professional use on mechanical assemblies, equipment installation, and service work across the HVAC, plumbing, electrical, and pool trades. Technicians and installers reach for this tool when working with set screws, shaft collars, and panel hardware that require a reliable, full-size hex driver.

This hex key is appropriate for residential and commercial service applications where 3/8-inch hex fasteners are encountered. Common scenarios include tightening set screws on fan blades, motor mounts, pump couplings, and access panel hardware. The long arm design makes it practical in confined equipment spaces where a standard short-arm key cannot generate adequate torque or reach the fastener directly. It is a standard hand tool for any trade technician carrying a basic service kit.

Key Features

• 3/8-inch hex size fits standard hex socket fasteners and set screws
• Long arm style provides extended reach and greater leverage
• 6.75-inch overall length for use in confined or deep-access spaces
• Steel construction resists deformation under high-torque applications
• Inch measurement system for compatibility with standard US fasteners

Compatibility

Designed as a general-purpose hand tool for use with any 3/8-inch hex socket fastener in standard inch-measurement applications across trade and mechanical service work.

Installation Notes

No power source is required for this hand tool. Ensure the hex key is fully seated in the fastener socket before applying torque to avoid rounding the drive or the fastener head. Always select the correct hex size before use. Follow applicable equipment manufacturer guidelines and safety lockout procedures when servicing powered equipment.