WIDE COMPATIBILITY: This Drill Bit Kit is not only for impact drivers, but also for hand screwdrivers, drill screwdrivers, electric drills, corded drills, cordless drills, and universal chucks for most hand drills. BIT SET: The long head screwdriver accurately locks screws, and the non-slip fine teeth that each edge fits more tightly and securely to avoid bit slippage and improve work efficiency. HIGH QUALITY MATERIAL: This product is made of high quality alloy steel. The hardness reaches 62HRC, and the magnetized screwdriver head as a whole inductively adopts the quenching process, which is impact and can be used in high-intensity work occasions. MAGNETIC DRILL: Super strong magnetism can easily suck up and fix the screws without slipping and not easy to fall off; Special coating on the protects against rust; Various sizes of screwdriver bit sets for many situations. Size: 12 pieces screwdriver bits in 1 inch/25 mm, 2 inch/50 mm, 2.6 inch/65 mm, 2.8 inch/70 mm, 3.5 inch/90 mm, 6 inch/150 mm lengths; different sizes are available to meet your different needs and they are easy to carry or store., Weight: 0.39352513767 Pounds, Manufacturer: Ptdfjspt