I have a job that will need about 150 holes drilled in 3mm thick carbon plate. The holes need to be 4.33mm +/- .01mm. It's right between common sizes of 4.3mm and 4.365mm. Normally I get my carbide drills for these jobs from drillbitsunlimited for just a couple bucks a peice and they work great. I found a couple 4.33mm elsewhere but they are around 25 bucks and hss. Could I possibly grind a 4.365 down to 4.33? Was thinking maybe just chuck it up in my cnc and slowly step into a grinding stone in my vise. Only needs to drill through 3mm, so only a small portion needs to be ground. These drills are only 10mm long flute to begin with so it should have good rigidity as I rub it up against the stone. Will it work?