- Columbus, Indiana, United States
- Jun 1st
6 BT 40 holders 5 have .500 pilot with .250 key M16 X 2 threads for draw bar,M6 X 1 threads for mill.1 has .750 pilot with .310 key for mill cutter and M8 X 1.25 in pilot.Look new,I bought these at auction for my mill that has cat 40 spindle.Not knowing these have metric threads they will not work for me.Have questions please ask.Thanks!