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Nov 01, 2006 · For ball end mills where I don't need reach, I use the MSC ZrN coated stub carbide 3 fluters. MSC part # GZ03288149. Currently on sale for around 30 each. Bargain. Run them with coolant since Mic6 can be gummy. If I'm doing a lot with the ball, I'll rough out the path with a regular end mill, and then come back through with the ball.Abbott manufactures over five billion balls each year in a range of sizes and materials. Most are of stainless or carbon steel, while the rest are from brass, aluminum, chrome steel, precious metals, .