I need to cut a 0.005 max inside radius on a corner on a lathe. Can anyone recommend a tool/insert for doing this.
cermet .004 rad insert ccmt then take a hone and file it slightly giving you a .002-.003 then interpolate a rad of .004.
if you plunge it 99% of the time you will get a ****ty part and be out of spec. Leaving an undercut.
even if you take that .004 rad insert and interpolate a .0045 it will be better than plunging.