Feature: * Special electrician cross screwdriver is made of alloy steel with hardness up to HRC63 deg;. * Phosphorescent black treatment, more rust-resistant, tighter screw. * With magnetism, you can work more easily. * Color variety, easy to work. *Optional specification: FPZ1(4.5mm), FPZ2(5.5mm), FPZ3(7mm), optional length: 65mm, 110mm. Specifications: Product Name: Special Phillips Screwdriver Bit Material: Alloy Steel Color: Black, Red, Yellow, Green (As Shown) Magnetic: Yes Head Size: 4.5mm(FPZ1), 5.5mm(FPZ2), 7mm(FPZ3) Optional Size: FPZ1, FPZ2, FPZ3 Optional Length: 65mm(2.55''), 110mm(4.33'') Suitable for: Socket Switch, Circuit Breakers, Air Switches, Socket Panels, Ground Leakage Covers, Circuit Breakers* Please note that the color holster is insulated, while when the rest is not. Quantity: 1pc Package includes: 1 Screwdriver Bit Note: 1. Transition: 1cm = 10mm = 0.39 inch.2. The real color of the item may be slightly different from the website images caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.