Features Convenient Replacement: Easily replace drill bits without the need for external tools, ensuring quick and convenient installation, saving you time and effort. Simple : The three jaws chuck can be effortlessly opened and closed with a simple reverse of the head, providing a straightforward and user-friendly . High-Quality Construction: Precision machined and heat-treated with the highest quality steel, ensuring durability and excellent strength for accurate and reliable performance. Impact Resistant Durability: Designed to be impact resistant, ensuring a long service life and stable performance, making it suitable for prolonged and demanding work. One-Handed Quick Connect: Enables easy clamping and locking with one-handed , featuring radial locking for quick keyless connection. Features: 1、Drill bits can be replaced without any external tools, and the installation is convenient. 2、Three jaws chuck is opened and closed by a simple reverse of the head, and the is simple. 3、Easy to use, accuracy machined to ensure accuracy, made of the highest quality steel, heat treated to obtain excellent strength. 4、Impact resistant, , long service life, suitable for long time work, stable performance. 5、Can be easily clamped and locked by one？handed , quick connect without key, radial locking. Specification: Item Type: Drill Chuck Material: Alloy Steel Clamp Size Range: Approx. 2-1m Thread Diameter: Approx. 1m / 0.5in Package List: 1 x Drill Chuck Note: When using the chuck, please tighten and fix it Package List 1 x Drill Chuck