Ball End Mills have a round tip used to machine curved details, also called Ball Nose End Mills, they are used for milling rounded slots, slopes, and machining 2D/3D dimensional contours with a smooth finish. Great for milling into all types of material including, wood, plastic, metal. etc. Use uncoated end mills for general purpose milling and short production runs. Use coated end mills for demanding, high-speed jobs in tougher materials as well as for longer production runs. They’re more wear resistant than uncoated end mills. Made in the USA.