Features: Experience secure and stable drilling with our Ratchet Selves Locking Drill Chuck Head, prevent accidental loosening during operations. Crafted from metal, this drill chuck head offers a wide clamping Ranges of 0.8-10mm, ensuring compatibility with various drill bit for applications. Ideal for professional like construction workers and DIY enthusiasts who require efficient and precise Tool for their projects. Perfect for woodworking, metalworking, this drill chuck head enhances your tool's performances in diverse environment. Its lightweight design minimizes user fatigue, while the Selves locking mechanism allows quick bit changes, making it essential accessories for any power tool collection. Specifications: Component:Plastic+Metal Size:Approx.5x4x4cm/1.96x1.57x1.57inch Package Includes: 1Pc Drill Chuck note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.