Milwaukee 1/4" Shank Small Thread Arbor is designed to fit hole saws up to 1-3/16" and drill chucks that are 1/4" and larger. Crafted from durable hardened steel, this arbor ensures long-lasting performance and reliable use in various drilling applications. Its robust construction makes it an essential tool for professionals and DIY enthusiasts alike, providing a secure connection between your drill and hole saw for precise cutting. Model Number: 49-56-6950