This YG-1 ALU-POWER end mill is a top-quality product that is perfect for use in metalworking applications. With a diameter of 1/21" and 3 flutes, this end mill is designed to provide precise and efficient cutting for all your metalworking needs. Made in Korea, Republic of, this end mill is a reliable and durable choice that will help you get the job done right. The unit quantity of this end mill is 1, and it comes with a 1.25" loc and a 3" oal. Whether you're a professional in the metalworking industry or just starting out, this YG-1 ALU-POWER end mill is a great addition to your collection. It's perfect for use with a variety of metalworking machines and is sure to provide you with the precision and efficiency you need to get the job done.