Paramount PAR17517 Ball End Hex Key 9/16 Inch Long Arm

Product Description

The PARAMOUNT PAR17517 is a long-arm ball end hex key designed for fastener-driven work in tight or offset access points. Sized at 9/16 inch hex, it delivers reliable torque transfer through a Protanium High Torque Steel construction that resists wear and deformation under load. The ball end allows engagement at up to 30 degrees off-axis, making it well suited for confined spaces where straight-on access is not possible. At 9 inches overall length, the long arm provides increased leverage for driving larger fasteners without excessive effort. This type of tool is used by HVAC technicians, plumbers, electricians, and general trade professionals for equipment assembly, panel fasteners, and mechanical service work.

The PAR17517 is appropriate for residential and commercial service applications where 9/16 inch hex fasteners are standard. The long-arm format is common in equipment installations where deep-reach access or higher torque is needed, such as securing compressor mounting hardware, electrical enclosure bolts, or mechanical equipment frames. The gray handle finish is a standard indicator of the inch measurement system, consistent with other tools in this series.

Key Features

• Ball end tip allows up to approximately 30-degree off-axis fastener engagement for confined-space access
• Long arm design at 9 inches overall length provides extended reach and increased leverage
• Protanium High Torque Steel construction resists rounding and deformation under torque load
• 9/16 inch hex size suits larger fasteners common in HVAC, mechanical, and electrical equipment
• Gray handle color indicates inch-series sizing for quick identification in mixed tool sets
• Single-piece packaging with no minimum order beyond one unit

Compatibility

Designed for use with standard 9/16 inch internal hex fasteners in inch-series mechanical, HVAC, plumbing, and electrical equipment applications.

Installation Notes

This tool is used by trade professionals across HVAC, plumbing, electrical, and mechanical service work. Ensure the equipment or assembly being serviced is de-energized, depressurized, or otherwise made safe before using hand tools on fasteners. Select the ball end engagement only when straight-on access is obstructed, as straight engagement provides superior torque transfer and reduces tip wear. Inspect the hex key tip for wear or deformation before applying high torque to avoid fastener damage.