Features: Engineered with steel, these high impact screwdriver bit deliver exceptional wear resistance and toughness for heavy duty drilling tasks. Crossing recessed drill bit ensuring compatibility with most power tool brands, slotted screws, and industrial fasteners effortlessly. Ideal for professional contractors, enthusiasts, and workshop technicians requiring reliable performances in demanding environment. Tackle woodworking projects, automotive repairs, or construction job with confidence using these shock resistant, long screwdriver bit. Quick changing chuck compatibility and antislip hexagonal shank design maximizing efficiency during repetitive drilling operational. Specifications: Component:Steel Size:25mm/50mm/65mm/70mm/90mm/150mm Package Includes: 3 Optional Package: Package 1 Include:4Pcs Screwdriver Bit Package 2 Include:5Pcs Screwdriver Bit Package 3 Include:6Pcs Screwdriver Bit note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.