Need an end mill that can handle tough materials? This Drill America cobalt steel end mill is built for performance. With a 5/8-inch cutting diameter and a 1-5/8-inch cutting length, it's ideal for machining harder metals like stainless steel, nickel alloys, and high-strength steels. The cobalt blend gives it better heat resistance and edge retention compared to regular high-speed steel tools. It features a polished finish for smoother cuts and a Weldon shank with a flat side for secure, easy alignment in your mill holder. The 4-flute, double-end design and right-hand spiral flutes help pull chips up and out of the cut, reducing clogging and giving you a cleaner workpiece. Perfect for machinists, metalworkers, DIY enthusiasts, or anyone running a milling job that demands precision and durability. Whether you're working in a professional shop or a home garage, this end mill delivers reliable cuts and long tool life. Keep one in your toolbox for those challenging materials – it's a workhorse you can count on.