Paramount PAR17507 Ball End Hex Key 1/8 Inch Long Arm

Product Description

The PARAMOUNT PAR17507 is a long-arm ball end hex key designed for fastener driving in tight or angled access situations. The ball end tip allows engagement with hex fasteners at off-axis angles, making it practical when straight-line access is obstructed. At 3-3/4 inches overall length with a 1/8-inch hex size, this key fits the short end of standard L-key applications where extended reach matters. Constructed from steel, it is built for repeated use in mechanical, HVAC, plumbing, and pool equipment service environments. This is a hand tool intended for technicians working on equipment fasteners, set screws, and adjustment points encountered during routine installation and service work.

This hex key is suited for trade professionals performing field service, equipment installation, and maintenance tasks that require 1/8-inch hex drive access. Common applications include tightening or loosening set screws on motor shafts, valve stems, panel hardware, and pump components. The long arm configuration increases torque leverage compared to a standard short-arm key, while the ball end allows up to approximately 25 to 30 degrees of angular engagement. It is a practical addition to a field service kit wherever 1/8-inch hex fasteners are encountered in residential or light commercial equipment.

Key Features

• Ball end tip allows angled fastener engagement when straight access is limited
• Long arm style provides increased torque leverage over short-arm designs
• 1/8-inch hex size fits standard set screws and hex socket fasteners
• 3-3/4 inch overall length for reach in confined spaces
• Steel construction for durable, repeated-use performance
• Inch measurement system for compatibility with standard US fastener specs

Compatibility

Designed as a general-purpose 1/8-inch ball end hex key for use with any standard inch-series hex socket fastener or set screw requiring that drive size.

Installation Notes

This tool is used by HVAC technicians, plumbers, electricians, and pool service professionals during equipment installation and service. Ensure equipment is powered down and, where applicable, refrigerant or fluid systems are depressurized before accessing fasteners. Use the straight end for initial engagement and high-torque applications, and reserve the ball end for angled access at lower torque. Avoid applying excessive side-load force to the ball end, as this can damage the tip over time.