Wera 05022130001 Metric Long Arm Hex Key Set 9 Piece

Product Description

The WERA 05022130001 is a 9-piece metric hex key set built for professional use in HVAC, plumbing, electrical, and mechanical service work. The set covers nine sizes from 1.5 mm through 10 mm, with a long-arm design that provides extended reach into deep fastener pockets and better torque leverage compared to standard-length keys. These keys are a shop and van staple for technicians working on equipment fasteners, access panels, set screws, and component mounting hardware across a wide range of trade applications.

This hex key set is suited for residential and light commercial service environments where metric fasteners are common. Typical use cases include tightening or loosening set screws on motor shafts, blower wheel hubs, valve packing nuts, and panel hardware. The 9-piece size progression covers the most frequently encountered metric hex fastener sizes in HVAC, refrigeration, pump, and electrical equipment service.

Key Features

• Nine-piece set covering 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm hex sizes
• Long-arm style for extended reach and increased torque leverage
• Metric sizing range addresses the most common trade fastener applications
• Compact set format keeps all sizes organized for van and shop storage
• Consistent size progression with no gaps across the 1.5 to 10 mm range

Compatibility

Designed for use with standard metric hex-socket fasteners across residential and commercial HVAC, plumbing, electrical, and mechanical equipment.

Installation Notes

Hex keys are hand tools used by HVAC technicians, plumbers, electricians, and mechanical service professionals. Always ensure the key is fully seated in the fastener socket before applying torque to avoid rounding the drive recess. Disconnect power or shut off supply lines before servicing any equipment fasteners that secure covers, motors, or valves. Inspect keys regularly for wear or deformation and replace any bent or damaged keys before use.