Wiha 66988 L-key Ball End Hex Key Set 13 Piece Sae

Product Description

The WIHA 66988 is a 13-piece L-key ball end hex key set covering SAE sizes from 0.050 inches through 3/8 inches. Each key features a ball end tip that allows fastener engagement at angles up to 30 degrees off-axis, which speeds access in confined spaces. The keys are manufactured from steel for durability under daily trade use. This set is suited to HVAC technicians, electricians, plumbers, and mechanical contractors who regularly drive and remove hex fasteners on equipment panels, fan assemblies, valve packing glands, and electrical enclosures.

This set is appropriate for residential and light commercial service work where a wide SAE hex range is needed in a single compact kit. The L-key form factor provides both torque leverage on the long arm and precise control on the short arm. The ball end allows engagement at an angle when straight access to a fastener is obstructed by adjacent components, piping, or sheet metal. The set ships as a complete 13-piece unit in a single package.

Key Features

• Ball end tip on each key allows off-axis engagement in tight or obstructed spaces
• Full SAE range from 0.050 inches to 3/8 inches in 13 sizes
• Steel construction for strength and resistance to deformation under torque
• L-key form provides a long-arm torque option and a short-arm control option on every key
• Complete 13-piece set packaged as a single unit for toolbox organization

Compatibility

Designed for use with standard SAE hex fasteners across residential and commercial HVAC, plumbing, electrical, and general mechanical service applications.

Installation Notes

No power shutdown is required for hand-tool use, but always de-energize and lock out electrical equipment before driving or removing fasteners on live panels or enclosures. Select the correct hex size before applying torque to avoid rounding fastener heads. Ball end tips are designed for moderate off-axis use and should not substitute for straight engagement when maximum torque is needed. Follow applicable facility or jobsite tool-use protocols.