ENHANCED DURABILITY AND PERFORMANCE FOR THICK MATERIALS: The Bi-Metal Hole Saw General Set features a robust design with patented tooth forms for optimal chip removal, ensuring longer life and efficient drilling; its deeper saw design allows for cutting thicker materials up to 44mm in a single pass, making it suitable for demanding projects and various applications EFFORTLESS PLUG EJECTION: Featuring a large, continuous slot, this set offers easy plug ejection and removal; the slot provides leverage, making the process quick and hassle-free, allowing you to focus on the task at hand VERSATILE APPLICATIONS: The high-speed steel cutting edge of these hole saws enables effective drilling through wood, metal, and plastic; independently from the project you are working on, this set is designed to meet your versatile drilling needs LONG-LASTING PERFORMANCE: Compared to the prior generation, this set offers up to 2x longer life; investing in the DT90353-QZ means you can rely on its durability and longevity, a set built to last BUILT FOR DEMANDING PROFESSIONALS: For 100 years, DEWALT has been the brand of choice for demanding professionals who require tools that are reliable, tough, and built to last; with a legacy of excellence and a future of continued advancement