Description: Our screwdriver bit is with fine craftsmanship and is anti-deformation, which has good anti-rust ability and long time to use. With the characteristics of high hardness and complete specifications, the screwdriver bit is wear-resistant and suitable for disassembling computers and mobile phones, repairing other electronic products or toys. Made of high quality carbon steel material, the screwdriver bit is corrosion resistant and anti-rust. The length of the product is about 8cm, the width is about 2.5cm, and the height is about 1cm. It is suitable for rechargeable drill, hand electric drill, hand drill, electric screwdriver and so on. Item Name: Screwdriver Set Material: Carbon Steel Bit Type: Hexagonal Shank Bit Shank Diameter: 6.35mm Bit Length: 25mm Quantity: 10Pcs Features: Multifunctional, Corrosion Resistant, High Hardness Size Details: 8cm x 2.5cm x 1cm/3.15'' x 0.98'' x 0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 3 x Slotted Bits (SL4, SL5, SL6) 2 x PH Bits (PH1, PH2) 2 x Pozi Bits (PZ1, PZ2) 2 x Torx Bits (T15, T20) 1 x Square Extension Rod