Wide Clamping Range: This all-metal ratcheting self-locking drill chuck head is designed to securely hold drill bits within a range of 0.8mm to 10mm. It provides versatility and compatibility with various sizes of drill bits. Easy to Use: The self-locking mechanism of this drill chuck head allows for quick and effortless bit changes. only tighten the chuck clockwise to securely lock the drill bit in place or loosen it counterclockwise to release the bit. It provides convenience and efficiency during drilling tasks. widespread Connection:this drill chuck head is equipped with a standard threaded interface that allows it to be easily connected to most hand drills and power drills. It ensures a reliable and stable connection during drilling operations. enduring Metal Construction: Made entirely of high-quality metal, this drill chuck head offers exceptional durability and strength. It is built to withstand heavy-duty use and provides long-lasting performance, ensuring years of reliable use. Versatile Application: Suitable for various drilling applications, this drill chuck head is perfect for woodworking, metalworking, construction, and DIY projects. It enables precise and accurate drilling, making it an essential tool for professionals and hobbyists alike.