Miller,
I have several gauges of SAAMI spec reamers from two makers. All are 5* cones. The reason I know is I had to have one reamer re sharpened due to damage on the cone area. I checked it on an O.C.. The 5* dimension is specified as a "basic" dimension, which means it is specified without tolerance.

My only references on forcing cones in LC Smiths are a few that I have owned and the two I have now. I haven't measured them.

Last edited by Chuck H; 11/06/15 09:11 PM.