TEKTON 2520 Folding Hex and Star Key Wrench Clip, 11-Piece Chrome vanadium steel wrenches are heat treated and black-oxide finished Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear Contoured shape, with rounded profile and soft, textured grips, comfortably fits in your pocket and your palm 9-pc. Hex key wrenches (SAE): 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 in. 2-pc. Star key wrenches: T15, T20