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Okay so I have a project that has 2 manifolds. The parts have a 120 deg drill point in the bottom of all drill holes. The intersect and where they intersect all transitions cannot have a sharp edge or feather. They have to be with .03R to .06R everywhere they meet. I asked for a ruling since I am using coolant through 130 deg drills I was thinking of just hitting the depth remolding the area where 130 hit and then program my blends from there. Never got an answer so I am trying to finish up my tool list and running out of time.I am thinking I either have from tools made with the 120 deg points for my 15 different sizes which means a whole lot of custom tools, go to gun drills which seem to be about the only thing with 120 deg points that will be 10 to 20 times longer than I need. I have even bounced around 120 included angle chamfer mills but hanging a 1/2 tool 2.4" out to machine a drill angle does not sound like fun either. Flight Critical parts and already had a REV Change in the process. What have those of you that have had to deal with parts like this done?
