This 8-piece wrenches set by Stahlwille is designed for a variety of applications. It includes 8 different-sized combination metric wrenches that have both open and box ends. The set features the following sizes: 8 X 9, 10 X 11, 12 X 13, 14 X 15, 16 X 17, 18 X 19, 20 X 22, 24 X 27 mm. It is made of chrome vanadium and is heat-treated for added strength. The ergonomic plastic handles are comfortable to use. This set can be used to repair machinery, appliances, automotive engines, and other parts. The part number for this wrenches set is 96400305.