3 Dividing Heads & 3 tailstocks. They are L to R & B to F: Van Norman 10", Brown & Sharpe 10", Van Norman 7 1/2". The B&S is the most widely copied dividing head ever. Copies started showing up as soon as the patent ran out in the early 20th century & are still being made. So, that was my 1st choice. My mill is a Van Norman, though. So when a couple of that brand came along at good prices, I couldn't resist. That 210 pound behemoth on the left is gonna stay put for a while.