Paramount PAR37119 Hex Key 3/4 Inch Long Arm

Product Description

The PARAMOUNT PAR37119 is a 3/4-inch long-arm hex key designed for heavy-duty fastener driving in demanding trade applications. Built from Protanium High Torque Steel, this tool delivers the torsional strength needed for high-torque hex fasteners without deforming the drive tip. The long-arm configuration provides extended reach and increased leverage compared to standard-length keys. With an overall length of 11.2969 inches and a gray handle finish, the PAR37119 suits HVAC technicians, plumbers, electricians, and pool service pros who work with large hex fasteners in tight or deep-access installations.

The PAR37119 is suited for residential and commercial service work where 3/4-inch hex fasteners appear on equipment covers, valve bodies, large set screws, and mechanical assemblies. The long-arm design is particularly useful when access depth or required torque exceeds what a standard-length key can reliably deliver. It is packaged individually and sold as a single unit, making it a straightforward replacement or addition to a service toolkit.

Key Features

• 3/4-inch hex drive fits large hex fasteners common in HVAC, plumbing, and pool equipment service
• Long-arm style at 11.2969 inches overall length provides extended reach and greater leverage
• Protanium High Torque Steel construction resists twist and tip deformation under high torque
• Gray handle provides visual identification in a multi-key set
• Single-piece construction with no moving parts or inserts

Compatibility

Designed as a general-purpose 3/4-inch long-arm hex key for use with any hex socket fastener of matching size in trade and mechanical service applications.

Installation Notes

Hex keys are a hand tool used by HVAC technicians, plumbers, electricians, and pool service professionals. Always ensure the hex key is fully seated in the fastener socket before applying torque to avoid rounding the drive surfaces. Inspect the tip for wear before use on critical fasteners. No power-down or system isolation is required for the tool itself, but always follow lockout/tagout procedures when servicing energized or pressurized equipment that requires this tool for access.