Wera 05027106001 Hex Key Long Arm 5 Mm

Product Description

The WERA 05027106001 is a metric long-arm hex key designed for fastening and loosening hex socket screws in tight or deep-access locations. Built with an L-handle configuration, it delivers both torque leverage on the long arm and precision control on the short arm. The working end is ground to a 5 mm hex profile, fitting M3 fasteners commonly found in mechanical assemblies, HVAC equipment panels, and electrical enclosures. Overall length measures 160 mm (approximately 6.3 inches), placing it in the 4 to 6.9 inch overall length range. Weight is 0.123 pounds. This tool is suited for HVAC technicians, electricians, plumbers, and industrial maintenance professionals who work with metric-fastened equipment regularly.

The long-arm design is well suited for reaching recessed fasteners in equipment cabinets, fan assemblies, pump housings, and control enclosures. The extended arm provides greater torque application when breaking loose stubborn fasteners, while the short arm allows controlled final seating of screws. This key is particularly useful in service scenarios where standard-length keys cannot reach the fastener due to panel depth or obstruction. It is a single-piece tool requiring no accessories and fits within standard hex key pouches or tool kits.

Key Features

• 5 mm hex end fits common metric fasteners used in HVAC, electrical, and plumbing equipment
• Long-arm L-handle design provides extra torque leverage on the long side and precision on the short side
• 160 mm (approximately 6.3 inches) overall length reaches recessed or deep-set fasteners
• Metric system measurement for compatibility with metric-fastened equipment
• Lightweight at 0.123 pounds, suitable for tool pouch carry

Compatibility

Designed as a general-purpose metric hex key for use with 5 mm hex socket fasteners found in a wide range of mechanical, HVAC, electrical, and plumbing equipment assemblies.

Installation Notes

Insert the hex end fully into the fastener socket before applying torque to avoid rounding the drive recess. Power down or de-energize equipment before accessing any internally fastened panels or components. No special codes govern hand tool use, but follow applicable safety standards for the equipment being serviced. Inspect the key tip for wear before use and replace if the hex profile shows visible rounding or damage.