Mud
Well-known member
I dug this NOS 1.875" Ingersoll drill out of the "Stuff". I haven't found the number online, it seems to be obsolete. I have a pack of inserts that are spec'd for the current version and size of this drill. When I put these inserts in this drill they don't fit all the way down in the pockets, there's .015 gap under the insert. Even on the outer 2 sided pocket, it squeezes tight between the screw and the sides of the pocket and leaves a .015 gap under the insert. Screws are as tight as I can get them with a torx screwdriver by hand.
So I put it in an engine lathe and drilled a piece of aluminum to see if it would fail anything. Worked fine AFAICT.
Is this OK to run this way? Do you think there's another insert slightly smaller intended for this tool? Should I just run it and see what happens? I just want it ATM for hogging holes in steel on the engine lathe, but if it's intended to work this way I could use it in a VMC or turning center.
So I put it in an engine lathe and drilled a piece of aluminum to see if it would fail anything. Worked fine AFAICT.
Is this OK to run this way? Do you think there's another insert slightly smaller intended for this tool? Should I just run it and see what happens? I just want it ATM for hogging holes in steel on the engine lathe, but if it's intended to work this way I could use it in a VMC or turning center.