This Klein Tools 12-piece ball-end hex key set covers common SAE sizes from .050 inch to 5/16 inch, stored in a caddy with marked slots and a locking feature that keeps each key in place.
- Sizes: .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 inch (12 total)
- Material: top-grade alloy steel, heat-treated and tempered, rust- and corrosion-resistant surfaces
- Ball end: works at angles up to 25 degrees
- Extra length for hard-to-reach applications
Best for: fastening hex hardware at an angle, where a ball end reaches bolts a standard hex key can't line up with.