none complex tools required for setup, allowing fast changes and seamless workflow, especially useful for frequent tool adjustments Features 3.175mm and 6mm shank diameters for stable and high speed operations with rotary tools, ensuring smooth and time saving cut Designed for 3.2mm / 6mm inner hole sawing, this adapter easily converts drills into cutting machines, perfect for both DIYer projects and professional tasks Made from premium steel for wear resistance and long lasting, ideal for frequent use in demanding cutting applications Beyond sawing connection, it extends functionality for various rotary tool accessories, suitable for woodworking, metalworking, and DIYer enthusiasts, Manufacturer: Murye