Hello all I've been looking to further outfit my k&t mill and picked up this dividing head the other day. I've read and read on the different h & k model differences. But nothing I've read seems to answer my question as to what model I actually have. So here is a few pic that maybe somebody can id what I have. It's got a big taper hole for spindle well bigger that my 40 taper. Would this be a 50 taper? It has you classic 3 layers of paint and grime but appears to be tight. It doesn't have the extra hump on the body but does have the to dividing plates that are screwed together. Thanks.