Felo 0715750785 1/4-Inch x 4-Inch Insulated Hex Bit Holder Screwdriver, 518 Series Used with 1/4" hex bits 2-component handle with soft-grip outer material for highest torque Insulated screwdriver bit holder is individually tested for applications up to 1,000 volts Anti-roll handle with hole in handle to insert lever and easy storage Lifetime warranty - we will replace it free of charge