Klein 70550 11-Key SAE Folding Hex Key Set
Klein 70550 combines eleven fractional-inch hex keys in a reinforced-nylon folding handle. The listed sizes run from 3/32 through 1/2 inch, including a 1/2-inch key with a stated 4-inch length. Blades open independently up to 270 degrees. Select by the exact hex recess size and check the handle clearance at the working angle; the folding handle changes access compared with a separate L-key.
Specifications and included details
- Eleven SAE hex sizes: 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 and 1/2 inch.
- Independent blades open up to 270 degrees.
- Reinforced-nylon handle and heat-treated steel keys.
- Listed handle length: 6.63 inches; 1/2-inch key length: 4 inches.
Before ordering
This is an SAE set, not a metric set. The opening angle describes folding-blade travel rather than ball-end insertion angle. Do not assume every blade has exactly the same length.
Product questions and answers
Does Klein 70550 include a 1/2-inch hex key?
Yes. The listed eleven sizes include a 1/2-inch key with a stated 4-inch length.
Is the smallest key 1/16 inch?
No. The smallest size in the supplied list is 3/32 inch.
Does 270 degrees describe ball-end entry?
No. It describes how far the folding blades can open from the handle.
Browse Hand Tools > Hex Keys to compare other options.








