Irega I92W1000VCE12 12\" 92-1000V Insulated Adjustable Wrench The Irega 92-1,000V adjustable wrench undergoes a HIGH VOLTAGE TEST, according to EN-60900 Standard, equivalent IEC-900, and consisting of a 10,000V charge for 10 seconds, after which there should be no damage to the handle. Features: Insulated handles The handle insulation material fulfils the requirements of IEC 900 and EN-60900 as far as it concerns the electric strength and the mechanical properties Up to 25% Xtra opening capacity The 92W’s capacity allows to operate over a wider range of nuts and bolts using the same size of adjustable wrench Specification: Opening mm: 39mm Opening Inches: 1 1/2\" Size: 12\" (300mm)