This 3/8 in. hole saw arbor with adapter is a versatile tool that can be used with most popular brand hole saws. It fits all 3/8 in. drills and larger, and the included 5/8 in. adapter allows for use with larger hole saw diameters larger than 1-1/2 in. (32 mm). The fast and easy engage and disengage mechanism makes it convenient to switch between hole saws. The arbor also comes with split point pilot bits for precise drilling. Whether you're working on a DIY project or a professional job, this hole saw arbor and adapter set is a handy addition to your toolkit, providing compatibility with a wide range of hole saw sizes. With its durable construction and user-friendly design, it's sure to become a go-to tool for creating clean, accurate holes in various materials.