Kobalt 338365 8-Piece 90-Tooth 12-Point Ratcheting Flex-head Combination Wrench Set, Inch, includes 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, and 3/4-Inch Wrenches DURABLE POLISHED STEEL - Wrenches are made from durable heat-treated chrome vanadium steel with a fully polished finish 12-POINT BOX - 12-point box end allows wrench to work on 6-point, 12-point, star, square, and even semi-rounded fasteners 90-TOOTH DESIGN - 90-tooth ratcheting mechanism on box end only needs a 4-degree arc swing to operate FLEXIBLE HEADS - The box-ends each have a 180-degree flex head allowing you to reach fasteners at almost any angle INCLUDED SIZES - Set includes 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", and 3/4" SAE wrenches