Hex: 2, 2.5, 3, 4, 5 and 6mm. PZ: No.1 x2, No.2 x3, No.3 x2. TX: TX10, TX15, TX20 TX25, TX30, TX40. Crosspoint: No.0, No.1 x2, No.2 x3, No.3 x2. Flat: 3, 4, 5, 6 and 6.5mm. 1/4” magnetic drive adaptor. All Kennedy screwdriver bits have a hardness of 58 - 62HRC. High alloy chrome molybdenum steel for use on hand and power tools.