I made a purchase early on when I had first purchased my Wen 12 by 18 inch variable speed bench top lathe. I didn't even bother to look at the size of the banjo tool rest holder dimensions which now knowing that was 1 inch in diameter. How ever I made a a mistake buy as I said well a couple of them the harbor freight lathe being one of them. I bought a set of 4 tool rests from Amazon. Come to find out they work and fit on my Delta lathe perfectly. So in the long run now I'm glad I bought them even though I had no idea 2 or three months ago that I was going to buy a delta. So the tool res