The COMB DRL&CTSK HS # 4-1/2KEO PL is a high-speed combination drill and countersink tool designed for efficiency and precision. With a size of 4-1/2 inches, this tool is perfect for drilling and countersinking in various materials, including wood and metal. Manufactured by Field Tool Supply, it features a durable high-speed steel construction that enhances its longevity. The tool is designed for easy use in both manual and machine applications, making it versatile for different projects. Its design adheres to industry standards, ensuring compatibility with a wide range of drilling systems.