All-in-One Sharpener: This set includes a drill sharpener and three holders, enabling you to sharpen drill bits and kitchen knives with ease. Stable and reliable: Built with a robust plastic body and a durable grinding wheel, designed to withstand heavy use. Fast and effective sharpening: The high-hardness grinding wheel delivers efficient sharpening speed, helping you maintain all your cutting tools. Size guidance: Always refer to your personal size chart rather than any listed options; suitable for drill bits from 2 mm to 16 mm. Use scenarios: - Restore dull drill bits for wood or metalworking projects, extending tool life and reducing downtime. - Sharpen kitchen knives in the home or professional kitchen for everyday food prep. - In a workshop or on the go, quickly refresh multiple tools with varying sizes during a project.