A very impressive set with hardened nickelled blades. Blade hardness 35-40 HRC. Screwdriver body a smooth swivelling mechanism with a plastic colour coded top for blade size recognition. 8 Flat Screw Driver of sizes: 0.60, 0.80, 1.00, 1.20, 1.40, 1.60, 1.80 and 2.00mm. 1 Phillips Screw Driver of size: 1.60mm make up the set. Along with a heavy metal swivel base with size indication and spare blades and holder for each size included.