Key benefits and features - Broad compatibility and versatile conversion This keyless drill chuck with hex shank enables a cordless 1/4 inch drill to function as a drill or grinder, expanding your tool’s capabilities for a variety of projects. - Fast, one-handed operation The keyless design allows quick bit changes. With a single hand, you can securely lock and release bits and accessories, improving efficiency and workflow. - Durable construction Made from aluminum alloy and carbon steel, this chuck set is built for longevity. Its stable construction delivers reliable performance for demanding drilling tasks over time. - Wide clamping range for flexible use The set includes two chucks: - Silver chuck: clamping range 3-6.5 mm - Black chuck: clamping range 0.3-3.6 mm This combination covers a broad range of bit sizes, enhancing compatibility with different drilling needs. Use scenarios - DIY home projects and furniture work Convert a cordless drill into a versatile tool for drilling pilot holes, driving screws, and performing light grinding tasks around the house or workshop. - Woodworking and metalworking Quickly switch between drilling, deburring, or edge finishing by using the appropriate bit size from the two chuck options, reducing setup time and increasing accuracy. - Small-scale crafts and electronics Perform precise drilling on small parts and delicate components, with the flexibility to choose from a wide bit range for different materials and tasks.