The Milwaukee Tool 49-56-9641 3-1/2" Hole Dozer Bi-Metal Hole Saw is a high-quality cutting tool designed for various drilling applications. This hole saw is made of durable metal material and comes with a 1-year manufacturer warranty. With a depth of 3.3 inches and a weight of 0.6 lbs, this hole saw is perfect for general purpose use in home and workshop projects. Made by the trusted brand Milwaukee, this bi-metal hole saw is a reliable and effective tool for creating precise and clean holes in a variety of materials.