Wera 05022639001 Imperial Ball End Hex Key Set 9 Piece

Product Description

The WERA 05022639001 is a 9-piece imperial L-handle hex key set designed for fastener-driving tasks that demand both reach and torque. Each key features a ball-end tip that allows engagement at off-axis angles, useful when working in tight or obstructed spaces. The long-arm L-handle style provides mechanical advantage on the long end and precision control on the short end. This set covers sizes from 5/64 inch through 3/8 inch, making it a practical fit for a wide range of set screws, cap screws, and socket-head fasteners encountered in HVAC equipment, plumbing fixtures, electrical enclosures, and mechanical systems.

This set is suited for service technicians and installers who regularly access equipment panels, motor mounts, valve bodies, and terminal covers secured with hex socket fasteners. The included pouch keeps keys organized and accessible on the job. Ball-end engagement is especially useful when fastener heads are recessed or when the approach angle is limited by adjacent components. The imperial sizing range addresses the most common fractional hex fastener sizes found in North American HVAC, refrigeration, and mechanical equipment.

Key Features

• Ball-end tip allows off-axis fastener engagement for access in tight spaces
• Long-arm L-handle design provides high torque on the long end and fine control on the short end
• 9-piece set covers 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, and 3/8 inch sizes
• Imperial measurement sizing for North American fastener standards
• Includes storage pouch for organized transport and field use

Compatibility

Designed for use with imperial hex socket fasteners ranging from 5/64 inch to 3/8 inch, as found in HVAC units, plumbing assemblies, electrical enclosures, and general mechanical equipment.

Installation Notes

Licensed technicians and service professionals should select the correct key size before applying torque to avoid rounding fastener sockets. The ball-end engagement is intended for reduced-angle access and should not be used as the primary drive method when full torque is required. Store keys in the included pouch to prevent loss and protect tips from damage.