Draper Screwdriver And Bit Set (19 Piece) - SBS19This screwdriver and bit set includes 1 4" magnetic holder with handle. The screwdriver bits are manufactured from chrome vanadium steel, which is correctly hardened and tempered. They also have a shot blast finish. Supplied inside a handy plastic storage case. 1 x 1 4" Hex magnetic bit holder and handle 18 x CRV screwdriver bits: Plain slot 4, 5 and 6mm PH Type PH1, PH2 and PH3 PZ TYPE: No. 1, No. 2 and No. 3 Draper TX STAR T15, T20 and T25 Hex H4,