Features: 7pcs Screwdriver tips, 7 different lengths: 1inch (25mm), 2inches (50mm), 2.5inches (65mm), 3inches (70mm), 4inches (90mm), and 5inches (127mm) ,6 inches (150mm). The good quality screwdriver tips made from S2alloy steel, with a phosphorized black surfaces, high hardness, rust prevention, and corrosion resistance. Magnetic screwdriver tips: The powerful magnetic head makes it easy to grip and grip screws without sliding or pulling them out. The issue of screws falling off has beenresolved. Impact resistance: High torsion reduces pressure on the drill bit. Suitable for most hightorque maintenance projects, it will not twist or break. Quick replacement of 1/4 inch hexagonal handle: easy and quick installation and disassembly, can be used in conjunction with manual screwdrivers, electric screwdrivers, electric drills, andlithium drills. Widely used: suitable for drilling, tightening, and other fastening tasks. Usually used in mechanical equipment, car, motorcycles, bicycles, furniture, electronic devices, etc. Specifications: Lengths: 1inch (25mm), 2inches (50mm), 2.5inches (65mm), 3inches (70mm), 4inches (90mm), and 5inches (127mm) ,6 inches (150mm) Material：S2Alloy Steel Quantity：7PCS Set Package Includes: 7PCS Electric Magnetic Drill Bits Set note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement.