I need some help! I have never cut steel before as we mostly cut aluminum. Now I need to cut out the same part in "Cold rolled steel" and I have no idea what to run my tooling at nor what depth of cut to take. To top it all off I will be using a new cutter that I have never used yet and really don't wanna break it by trial and error. The tools I will be using is... 1/2 4 flute carbide end mill, 1/4 4 flute carbide end mill and a (new tool)valentite 1 inch 2 flute carbide indexable cutter. basically I am looking for speeds and feeds to run these at in this material and attempt to make them simi efficient without killing the tools or myself . The machine I will be using is a Haas VF-2 with 7500 rpm spindle. I need to face the stock which I will use the valentite cutter. I also will be contour roughing it out using the same tool. Then finish using the 1/2 followed by the 1/4 end mills. Any help on this would be appreciated. Thanks in advance.