This KNIPEX 10mm Open-End Wrench is a reliable tool for your next project. The open end wrench has been rated to 1000VAC, and meets insulation standards IEC 60900 DIN EN 60900. It features alloy steel construction, and chrome vanadium steel material for increased durability. With an overall length of 4 1/8 in., this open end wrench has a 1 1/16" width and 25/64" head size. You can use it on a variety of fasteners with its 10 mm head size. This KNIPEX 10mm Open End Wrench is the perfect addition to your tool kit.