The swing of the lathe actually has little to do with the tool post size you require. What matters is the vertical height dimension from the center of the spindle (or tailstock center) to the top of the compound slide. Yes, manufacturers list lathe swing sizes for their tool posts, but it is not really a good way to choose a tool post size. (Some lathes have carriage/cross slide/compound combinations that are higher or lower in relation to the spindle axis than other lathes with the same swing.) At the risk of confusing you even more, the size tools you use or plan to use can also enter into the equation. What you want to end up with is not running out of vertical travel with your tool post when putting each and every one of your tools at spindle center height. A few of the manufacturers do a better job of explaining this than others do, but most tool posts are clones of others, so the data can often transfer to other brands.Has any one used a bxa tool holder on a 9" south bend wide body lathe. Does it have to be modified to work, it says on the bxa 10" 0n up lathe size
Probably AXA for that lathe, but again, it ain't that easy, if you want to makes sure you will be happy with your purchase. I don't know how many I have seen buy a tool post and a bunch of holders, and then change to another size. Try to get it right the first time by getting your head around what you need for what you do and study what is available. And, yes, it will take some thinking, researching, and measuring. You know, machinist stuff.I use a 3/8" tool so do you think the bxa will work on my 9" south bend wide bed? Also if it is to tall could you mill the bottom off?