Features: 100% brand new and high quality. Made of high quality material, durable and practical to use. Anti-slip hex shank electric for Phillips screwdriver bit. Professional-grade power tool accessory for Phillips head fasteners. Heat-treated and tempered S2 tool steel absorbs shock, reisist twisting and cam-out for superior tool life. Blades have special non-slip grooves for better grip on screw face. Permanent magnetic tips help prevent dropped screws. 1/4 inch quick-change shank fits drill chucks, impact drivers, adapters, extensions and bit holders. It is useful to operate electronic device, perfect for electrician, mechanic and repair work. Specifications: Material: S2 – Alloy Tool Steel Color:As pictures show Optional Size: 25mm/50mm/65mm/70mm/90mm/125mm/150mm(Approx.) Mid-diameter:6mm(Approx.) Hex Shank Size : 6.35mm (1/4 inch) Screwdriver Bit Type:PH2 Magnetic :Yes Shank Type : Hex Shank QTY:6 Pcs/set ;7 Pcs/set Package Contents: 6pcs/Set PH2 Screwdriver Bits(50mm/65mm/70mm/90mm/125mm/150mm 1pc each size) OR 7pcs/Set PH2 Screwdriver Bits(25mm/50mm/65mm/70mm/90mm/125mm/150mm 1pc each size) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.