• For slotted, Phillips and hexagonal head screws • Includes 14 pieces: 12 bits, 1 hand operated impact driver and 1 bit holding adaptor • SL5, SL6, SL8, SL10, PH1, PH2, PH3, PH4, H4, H5, H6, H8 • To loosening jammed screws or nuts without the use of power tools • Robust and tough bits • High performance alloy steel • Zinc phosphate finish • Impact driver for 5/16” bits • ½” adaptor for bits 5/16” hexagon drive • 5/16" hexagon drive. DIN 3126, ISO 1173, style C8 • In plastic box