Hello all, we have been using standard length solid carbide thru coolant drills for some time now, with excellent results. 90% of what we use them for is production drilling 2024 AL, in OIL, with a ChipBlaster pushing 1500 psi through them. Works great.
Only problem is all sizes larger than .1875" are problematic in that they are too long in overall length for us. I have checked at least 5 manufacturers. I am about to have them made up from scratch to a stub length, for a considerably higher cost, from Specialty Tool. Kennametal and others will shorten drills off the shelf for the same price and lead time as making up specials from scratch.
Anybody know of a manufacturer that stocks stub lengths? I cannot find them anywhere. I need sizes up to 1/2" diameter, with an overall length no longer than 3".