【High-Quality S2 Alloy Steel】Manufactured from S2 alloy steel, these screwdriver bits offer high hardness, wear resistance, and durability for extended service life 【Slim Waist Design】Features an anti-strong impact slim waist buffer zone that absorbs powerful impacts from impact drivers, enhancing the bit's shock resistance 【Versatile Compatibility】Suitable for various power tools including drills, electric screwdrivers, and impact drivers 【Strong Magnetic Attraction】The head's strong magnetic design easily attracts screws and other small metal parts, firmly holding them to reduce slippage during operation 【Ball Head Design】Hexagonal ball head design allows for flexible operation in tight spaces, improving work efficiency 【Wide Application】Ideal for home repairs, automotive maintenance, mechanical assembly, and various other scenarios Specifications: Product material: S2 alloy steel Hexagon Ball Bits: 12Pcs (2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm and 12mm) Length: 75mm Shank diameter: 6.35mm