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Each material you set a standard SFM and chip load. Then each different tool is a percentage of that setting. I usually set the default for HSS. Say you have it set for 200 SFM and .005 chip for HSS. If you set carbide to 200% for both, you get 400SFM and a .010 chip. HTH
30 sfm is recommened for HSS
IIRC I was running 125sfm with Iscar inserts. Haven't cut it in a couple years though
What condition was it heat treated to?
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