Cole Jaws size

Dave, I have the same lathe and I went out and checked mine for my vicmarc chuck. the box was labeled for size 285mm. I took them out of the box and set them on a table in what would be the closed position. That measured

285mm which looking at the ruler is about 11 1/4 inches. In useing them I have to have the rubber stoppers close to the size I need else the jaws hit the bed. They have about an inch of travel. I would probable choose the 8" version to get more range on opening and closing the jaws. You could probably e-mail the manufacture and ask them. Maybe someone in the group who has had more experiance with these can give you a better opinion.

I have the Nova 12" and use them on a 12" capacity lathe. The 12" is a clearance figure. The buttons are mounted 3/8" in from the edge.