These wrenches are suitable for working in an atmosphere where a mixture of air and flammable substances in the form of gas, vapor, mist or dust is present frequently, continuously, or for long periods. They are also made of non-magnetic components, which makes them safer for applications demanding non-magnetic properties. \n \nThis is the perfect starter for your non – sparking tool set. \n \nThis is the complete set for Non-Sparking Wrenches \n \nSize (mm) \n \n5.5x7,6x7. 8x10, 9x11, 10x12, \n \n12x14, 14x17, 17x19, 19x22, \n \n22x24, 24x27, 27x30, 30x32 \n \nPlease allow two weeks for delivery \n \nPlease contact us if you have any questions about this product. \n \nFor questions about inventory, shipping, previous sizes, etc... \n \nPlease contact us here.