Features: The 2pcs 4 In 1 Drill Chuck Key is a must have tool for any DIY enthusiasts or professional. With its multi function design, it allows for quick and easy tightening of drills chucks, making it a versatile addition to your tool box. Crafted with durable and wear resistant materials, the 2pcs 4 In 1 Drill Chuck Key ensures long lasting performances. Its accurate dimension make it suitable for various drill head, providing a secure and reliable grip every time Designed for beginners and experienced users, the 4 In 1 Drill Chuck Key offer convenience and ease of use. Whether you are DIY enthusiasts or a professional tradesperson, this tool will greatly enhances your drilling experience. From home improvement projects to professional construction site, the Drill Chuck Key is an essential tool for any drilling task Whether you are working on wood, metal, or other materials, this versatile tool will ensure precise and efficient drilling every time. Smoothly polishing surfaces treatment, wear resistant. Specifications: Material:Alloy Color:Black Small Chuck Key Size:Approx.98x102mm/3.86x4.02in Small Chuck Key Outer Diameter of Gear:5.3mm,6mm,5.7mm,5.7mm; Big Chuck Key Size:Approx.75x75mm/2.95in Big Chuck Key Outer Diameter of Gear:5.9mm,6mm,7.7mm,9.3mm; Package Includes: 1set 4-way Chuck Key(2pcs) note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.