Premium Quality: Made from high-grade S2 alloy steel material and CNC precision manufacturing for long-lasting use, making them a reliable choice for any DIY project or professional work. Versatile Design: These screwdriver drill bits feature a 1/4 inch hex quick release shank, making them compatible with all standard drills. Wide Application: These magnetic screwdriver bits are compatible with impact drivers, electric screwdrivers, hand screwdrivers, 1/4 inch driver tools, corded drills, cordless drills, and air drills. Commonly used for mechanical equipment, automobiles, motorcycles, bicycles, furniture, and electronic equipment. Portable Design: The bits are stored in a case that fits easily into your toolbox, keeping them organized and easy to carry. No more searching for loose bits. Magnetic Function: The screwdriver impact bits can magnetically hold 2 to 3 screws. With strong magnetic adsorption, they securely hold both the bit and fasteners, reducing the risk of dropping during work. Color: Black + Green Material: Alloy Steel Package Contents: 2 x Screwdriver Bit 25mm 2 x Screwdriver Bit 50mm 2 x Screwdriver Bit 65mm 2 x Screwdriver Bit 70mm 2 x Screwdriver Bit 90mm 2 x Screwdriver Bit 150mm Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm. Only the items listed above are included.