Engineered for Safety and Built for the Toughest Jobs What sets Jonard Tools apart is their rigorous manufacturing process and attention to detail. The insulated screwdrivers are made with high grade chrome vanadium steel shafts and molded insulation directly bonded to the blade, eliminating any gaps that could allow voltage leakage. Each insulated screwdriver set is assembled with ... https://jonard.com/electrical/insulated-tools