Paramount PAR17515 Hex Key 7/16 in Ball End Long Arm

Product Description

The PARAMOUNT PAR17515 is a 7/16 inch ball-end hex key built for high-torque fastening applications in the trades. The long arm design provides extended reach and increased leverage, while the ball end allows engagement with fasteners at angles up to 25 degrees off-axis — useful when straight access is limited. Manufactured from Protanium High Torque Steel, the key delivers greater torsional strength than standard chrome-vanadium tools. The overall length is 7.5 inches. The gray handle provides a visual reference for size identification in a set. This tool is suited for HVAC technicians, plumbers, electricians, and pool service professionals working with hex-socket fasteners.

The PAR17515 is used wherever 7/16 inch hex fasteners appear in mechanical assemblies — equipment panels, motor mounts, pump housings, pipe hangers, and structural brackets. The long arm generates higher torque compared to short-arm keys, making it practical for stubborn fasteners or applications requiring firm, sustained force. The ball end allows off-angle engagement, reducing the need to reposition in tight installations. This key is appropriate for both residential and light commercial service work.

Key Features

• 7/16 inch hex size fits standard SAE hex fasteners
• Ball end allows off-angle fastener engagement where straight access is blocked
• Long arm design increases leverage and torque output
• Protanium High Torque Steel construction for increased torsional durability
• 7.5 inch overall length for extended reach in deep or confined spaces
• Gray handle provides quick size identification in a tool set

Compatibility

Designed for use with standard 7/16 inch hex-socket fasteners in inch-measurement systems. Suitable for general mechanical service work across HVAC, plumbing, electrical, and pool equipment applications.

Installation Notes

Use this hex key with appropriate personal protective equipment when working near energized equipment — de-energize and lock out power before servicing any electrical or mechanical assembly. The ball end should not be used as the primary drive method for high-torque final tightening; use the straight end for maximum torque on final seating. Inspect the key for wear or rounding before use to avoid fastener damage.