[Machine1]

Just another headache. I am running into problems with my .128 drill that I am using to drill thru 4 .09thk stacked Stainless Steel plates. It is drilling 56 holes and before it gets to the end the drill is breaking. I am running it at 1200rpm with a feed of 7.2. It equals out to .003 per tooth. I am chip breaking at .045". I am using a stub Cobalt drill. I would use carbide but we don't have any in house. Anyone have any suggestions.