I gotta job in our Mazak quick turn 250 lathe today and I found a 2inch kennemetal insert drill in the cabinet that I have never used before. It's one of their DFT drills with trigon inserts and thru coolant. I'm more of a mill guy myself but really been enjoying the mazak lathes we have. The material is p20 tool steel less than 35 Rockwell. The only inserts we have for that drill are a kc7935 grade. Based on the kennemetal book I found online it looks like I should be using a kcpk10 for outside insert and kc7140 for inside insert for stable cutting conditions. Sfm says 935 and feed of .007 to .012 ipr. That sounds like a lot to me but again I don't have those grades on hand. I'm going 5.2" deep with the drill. What do you guys think would be a good starting point? Only got 1 part to do. I was thinking 250 to 300sfm at .006 or .007 ipr.