Our insulated tool products are superior USA products. The mechanical parts of the tools are guaranteed for life provided they are used for the purpose for which they are intended the insulation is guaranteed to be free from defects in material and workmanship for a period of two (2) years from the date the original shipment. The insulation is guaranteed to pass a 1000 VAC proof test in accordance with applicable US and International standards and rated for application to 1000 VAC/1500 VDC.