Heat Treated, Alloy Steel Blades Nickel Plated Bar Hold Up To Repeated Use And Resist Corrosion. Set Features Popular Sizes To Satisfy Wide Range Of Fastening Needs. Ergonomic Handle With Slip-Resistant Textured Grip For Greater Comfort. Includes One Each: 4" And 6" Standard, 3" And 6" Cabinet, #1 And #2 Phillips.