I'm just setting up a machine shop and could use some direction on my tooling. Do I go primarly the carbide insert route our primarly the HSS route.
I'm going to be doing a fair bit of 6061-T6 work and I see the Carbide will cut a lot faster than HSS, the down side is there is no resharpening. If inserts are the way to go which particular type(s) would you recommend.
Also I'm interested in knowing why you'd use a spotting drill in place of a center drill. While talking about center drills..are the cheaper ones OK or do I need a better grade to ensure concentricity or improved tool life. Any recommendations?
And last but not least for now....tool holder for the lathe, piston or wedge type and why?