Impact Driver Sets, 13 pcs. ST = standard, metal case 225x115x40 mm, screwdriver bit for plain slot screws 6 x 1,0 mm / 8 x 1,2 mm / 9 x 1,6 mm / 12 x 2,0 mm, for hexagon socket screws MM 5 / MM 6 / MM 8 / MM 10, for cross slot screws PH 2 / PH 3 / PH 4, T 30 T 40 T 45 T 50.