Wiha 35297 Long Arm Metric Hex Key Set 9 Piece

Product Description

The WIHA 35297 is a 9-piece long arm metric hex key set designed for professional use in HVAC, mechanical, electrical, and plumbing service applications. Each L-key features a long arm design that extends reach into recessed fasteners and allows greater torque leverage compared to standard-length keys. The set covers metric hex sizes from 1.5 mm to 10 mm, making it suitable for a wide range of set screws, cap screws, and machine bolts encountered in field service work. Keys are nickel plated for corrosion resistance and manufactured from steel for durability under daily trade use.

This hex key set is well-suited for residential and light commercial service work where metric fasteners are common. Typical applications include equipment assembly and disassembly, motor and fan component service, panel and enclosure fastening, and general mechanical maintenance. The long arm configuration is especially useful when working in tight equipment cabinets or around obstructions where a standard L-key cannot achieve the necessary angle of approach.

Key Features

• 9-piece set covers metric sizes 1.5, 2, 3, 4, 5, 6, 7, 8, 9, and 10 mm
• Long arm design provides extended reach and increased torque leverage
• Nickel-plated finish resists corrosion in field service environments
• Steel construction for strength and durability under repeated use
• L-key form factor allows both high-torque drive from the short arm and reach from the long arm

Compatibility

Designed as a general-purpose metric hex key set compatible with standard metric hex socket fasteners across HVAC, electrical, plumbing, and mechanical service applications.

Installation Notes

Hex keys are hand tools requiring no power source or special licensing to use, but should be selected to match the fastener size precisely to avoid rounding the socket. Always use the correct size key for the fastener to prevent damage to the drive recess. Inspect keys periodically for signs of wear or deformation, and replace any key that no longer seats fully in the fastener socket.