We've touched on this subject. The BXA QCTP I bought for my Grizzly G0773 lathe / mill combo (12 x 27 swing & c - c) doesn't sit low enough on my cross slide. I couldn't begin to mill the holders as they are too hard. So it was suggested that I mount 1 up in the 4 jaw & starting from the center, cut it to size. OK, got it chucked up. What insert or cutter should I use?