16 Piece Drill and Screwdriver Bit Box Set, Contents, 6 x HSS Twist Drill Bits 2, 3, 3.5, 4, 5 and 8mm, 4 x Masonary Drill Bits 4, 5, 6 and 8mm, 6 x 25mm Screwdriver Bits SL4.5, SL5.5, PH1, PH2, PZ1 and PZ2, Total Tools