I am looking for an insertable drill to cut .531 to a depth of over 4.600. I can only find a insertable spade drill, but I have used them before, and I don't think it will be rigid enough. I am only cutting t-6 alum. but I want (need) speed.
Any help would be great!
p.s. my company is cheap as hell when it comes to spending the $$, so having one made is out of the question.