Paramount PAR37186 Hex Key 17mm Long Arm 11in

Product Description

The PARAMOUNT PAR37186 is a long-arm hex key designed for high-torque fastener applications in mechanical and trade service work. Built from Protanium High Torque Steel with a black oxide finish, this tool delivers the torsional strength needed for heavy-duty metric hex fasteners without fastener rounding or tool deformation. The long arm measures 11 inches overall, providing extended reach and increased leverage in confined or deep-access installations. The hex end is 17 mm, suited for large-diameter fasteners common in industrial, HVAC equipment assembly, pool equipment, and mechanical systems.

This hex key is used by HVAC technicians, plumbers, pool service professionals, and industrial mechanics when working with metric fasteners on equipment housings, mounting hardware, pump assemblies, and valve bodies. The long-arm design allows the technician to apply greater torque than a standard-length key, which is especially useful when breaking loose corrosion-bonded or thread-locked fasteners. The 17 mm size addresses larger fastener heads that appear on commercial equipment and heavy mechanical assemblies.

Key Features

• Protanium High Torque Steel construction resists twisting and deformation under high-load use
• 17 mm hex end fits large metric fasteners found on commercial and industrial equipment
• Long-arm design at 11 inches overall length provides extended reach and increased leverage
• Black oxide finish reduces surface corrosion and glare in field conditions
• Hex end style for direct fastener engagement without slippage
• Metric measurement system; single-piece solid steel construction

Compatibility

Designed for use with 17 mm metric hex fasteners on mechanical equipment, pump assemblies, HVAC units, pool equipment, and industrial machinery requiring a long-arm hex key.

Installation Notes

This tool is used by licensed tradespeople and service technicians during equipment assembly, maintenance, and repair. Always ensure equipment is fully powered down and depressurized before servicing fasteners on pressurized systems or energized equipment. Inspect the hex key for deformation or rounding before each use and replace if wear is visible. Apply steady, controlled torque to avoid fastener damage.