The Milford 1-1/8" Bi-Metal Hole Saw is a high-quality drill bit made in the USA. This hole saw is designed with electron-beam welded construction for durability and long-lasting performance. With a diameter of 4-3/4" and a length of 18 inches, this drill bit is perfect for a variety of drilling tasks. The steel material ensures toughness and resistance to wear, making it a reliable tool for any workshop or job site.