If you want to run the bar stock in a collet it is not going to work. Chucker lathes run a 5c collet which go to 1 1/8" max. You could cut off shorter pieces of stock and run them in a three or four jaw chuck. If you want to run a long bar all the way through the machine some of the Warner & Swasey turret lathes have collets at least that big, you can often find them on eBay or craigslist for cheep. Good luck to you and thanks for watching!
