Accurate Positioning: These bits help you fix the screw exactly in place without worrying about wobbling or misdirection. the process of twisting screws so you can work more efficiently and easily! Limit The Screw Depth: Magnetic collar design limits the penetration of screws to the board and prevents damage to walls or boards by twisting screws overly. Make your work hassle-free. Magnetic & Non-slip: The magnetic and non-slip design allows the screw to attach to the bit without falling off, making your work easier and effortless. Strong and : Made of strong alloy steel, which is wear , and with high hardness. Suitable for gypsum board, woodworking board, dry wall and more. Wide Compatibility: Widely compatible with electric screwdrivers, manual screwdrivers, electric drills, hand drills, etc., for easy screw installation and removal. Suitable for maintenance and installation of equipment in home furnishing industry. Interface to Electric Drill/ Screwdriver: 6.35mm/0.25inch Hexagon Shank colour: silver Material: alloy steel Size: 50mm Package Contents: 5 x Magnetic Positioning Screwdriver Bits Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.