The Performance W8659 32-piece 3-inch Security Bit Set contains most common tamper-proof sizes for use with your power drill, screw gun or magnetic driver. Features: * Includes most common tamper-proof sizes including tri-wing bits, torque bits, spanner bits and hex bits * Bits fit most power drills, magnetic drivers and screw guns * Organized in sturdy plastic carry case What"s In The Box: * Performance W8659 32-piece 3-inch Security Bit Set