620-6 VDE Slotted Phillips Screwdriver Set 6 Piece. Bahco 6 piece 600 series insulated screwdriver set for Slotted and Phillips® head screws. Ideal for repair, servicing technicians and engineers working near electrically energised systems up to 1000 V ac or 1500 V dc. These insulated screwdrivers provide both safety for the user and can also prevent damage to electronic parts that might be damaged by an electrical short.