Paramount PAR17564 Hex Key 5 Mm Ball End Long Arm

Product Description

The PARAMOUNT PAR17564 is a metric ball-end hex key designed for fastener-driving in confined or angled spaces. The 5 mm hex size fits standard M8-class socket-head cap screws common in mechanical, HVAC, and plumbing equipment assemblies. The ball-end tip allows engagement at off-axis angles, reducing the need to reposition the tool when clearance is limited. The long arm provides extended reach and increased torque leverage compared to standard-length hex keys. Constructed from steel, this key is built for repeated use in trade and light-industrial service work. The overall length of 4-39/64 inches suits both bench work and field installation tasks.

This hex key is suited for service and installation work across HVAC, plumbing, electrical, and pool equipment applications where metric fasteners are encountered. It is a practical addition to any service technician's hand-tool kit when working on equipment panels, motor mounts, pump housings, or valve assemblies that use 5 mm socket-head or set-screw fasteners. The long-arm format is especially useful when reaching into equipment cabinets or around obstructions during field service.

Key Features

• 5 mm metric hex size fits standard socket-head cap screws and set screws
• Ball-end tip allows off-axis fastener engagement for use in tight or angled spaces
• Long arm provides additional reach and torque advantage over short-arm designs
• Steel construction for durability in repeated trade-service use
• 4-39/64 inch overall length suits both bench and field applications

Compatibility

Designed as a general-purpose metric hex key compatible with 5 mm socket-head cap screws, set screws, and similar metric fasteners found across HVAC, plumbing, electrical, and pool equipment assemblies.

Installation Notes

This tool requires no installation and is ready for use out of packaging. When driving fasteners in powered equipment, de-energize the system and follow applicable lockout/tagout procedures before beginning work. Apply torque smoothly through the long arm to avoid rounding fastener sockets, particularly when using the ball-end at an angle. Inspect the hex tip for wear periodically, as a worn tip can damage fastener heads.