Chuck Key Replacement Universal Drill Chuck Key High Quality 10mm (3/8)

Universal Compatibility: Fits most standard 10mm (3/8") drill chucks for versatile use. Wide Application: Suitable for hand drills, power drills, and drill presses with 10mm (3/8") chucks. Ergonomic Design: Features a comfortable handle for easy gripping and efficient tightening or loosening of drill chucks.

eBay