Hello, I am going to be machining some 4130 here soon. I have mostly done aluminum. My question is, how do I calculate the speeds and feeds for steel. I have a calculator on my phone, but it doesnt go off material just tool size. I normally ran the machine at 1500 to 2k for aluminum, but with steel, think this may cause problems. I am using master cam, so it gives me some basic numbers, but I know I can usually bump em up. Im just wondering how high I can bump em. I will be running the part on a HAAS TM1. Thank you.