Entire shank plastic coated for circuit protection only. Not insulated. Special plastic coating resists cutting, cracking and chipping. Thin coating permits use in confined areas. Full hollow shafts facilitate work on stacked circuit boards or other long bolt applications. Internal flanges provide solid, twist-resistant shaft anchor. Premium chrome plated for smooth feel and corrosion resistance. Meets or exceeds applicable ASME or ANSI specifications. Handle end is also colour coded for easy identification. Cushion-grip handle allows for greater torque and comfort. Tip-Ident® quickly identifies nut driver and size.