... steel , chrome-molybdenum steel ,chrome-vanadium steel ,carbon steel .Handle:PP, TPR ,TPE, PP+TPR, PVC.Blade:round blade , ... informations: New design Screwdriver1.Type: Newly design 6pc ruuber handle screwdriver set with plastic support 2.Blade: High quality chrome ... chrome-plated. Round blade 3. Handle: rubber handle with logo pp+tpr soft handle surface for hand Ergonomic handle5. Norms: DG-03S006Why ...