This 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, H5 and H6, Square - S1, S2 and S3