An 18-piece ball-end hex key set covering the common SAE and metric sizes in one color-coded, interlocking caddy, with arms 30 percent longer than standard for more reach on hard-to-access fasteners.
- Sizes: 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 inch and 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10 mm
- Ball-end keys work at angles up to 25 degrees
- Finish: heat-treated, tempered, black phosphate coating for rust resistance
- Cases interlock so SAE and metric sets stack together
Best for: keeping a full SAE and metric hex key range sorted and color-coded in one caddy instead of a loose pile of keys. Do not use a pipe or similar extension for extra turning force.