The Husky 26-Piece Hex Key Set includes hex keys made from alloy steel for long-lasting wear and featuring a chamfered-end design. The Allen wrenches resist rotational distortion and come in a variety of SAE and metric sizes. The finish provides resistance to corrosion while the included caddies help you keep them organized. Set includes 13 SAE and 13 metric keys covering sizes 0.05, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 in. and 1.5, 2, 2.5, 3, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10 mm Keys feature chamfered ends on both sides of the key to help guide the key into the fastener