- Adjustable Inner Diameter: Easily customize the fit for various drill sizes, making it versatile for a range of projects. - Secure Locking Mechanism: Equipped with anti-slip grooves and a nylon inner layer, this collar ensures a firm grip that won’t loosen during use. - Lightweight Aluminum Alloy: Made from durable aluminum alloy, this collar is both sturdy and lightweight, facilitating easy handling and extended use. - Precise Drilling Control: Achieve accurate drilling depths to enhance your work efficiency and improve overall results. Ideal for woodworking, metalworking, and DIY projects, this collar allows you to adapt to different drill bits seamlessly. Whether you're creating intricate designs or performing repairs, its secure fit and precise depth control make it an essential tool for professionals and hobbyists alike.