The Freud 99-267 1-7/8" Diameter Entry & Interior Door Router Bit System is a high-quality set of two router bits designed for use with a 110-volt power source. Specifically compatible with Freud brand tools, these red and silver router bits are suitable for rotary tools and are ideal for grinding and cutting wood materials. With a length of 8.600 inches and a height of 3.900 inches, these durable bits weigh 3.5000 pounds and are perfect for various home and workshop projects.