Features: Manufactured from high-grade materials with a hardness of HRC60, this tool set provides extended resiliences compared to standard versions, ideal for frequent and demanding industrial use. Features integrated magnetic that boosts screw retention by 50%, reducing screw loss and making it excellent for home repairs and construction tasks. Allows for tool less bit replacement in just a few moments, improvement over traditional setups, ensuring rapid tool changes for professional. Crafted with a special nonslip texture that increases clamping power by 20%, minimizing slippage and enhancing safety during operations on uneven or elevated surfaces. For various power tool brands, accommodating different chucks measurements, making it suitable for a variety of fields and DIYer projects. Specifications: Dimensions: 60mm in length, 6.35mm in diameter (1/4 inch) Technical parameters: compressive strength 1000Kg | Magnetic adsorption force ≥2.5Kg Use scenarios: Home DIY｜Auto repair｜Multi-purpose adaptation of industrial production lines Package Includes: 1 Set Metal Magnetic Slot Driver Attachments note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.