I have an old Continental International (made in Taiwan) 15-inch floor drill press that I bought on Craigslist several years ago. The machine, I think, dates from the mid-1970s. It works very well, but it had a broken column rack when I bought it. After years of struggling to raise and lower the table, I finally tried to replace the rack. With the help of a very good friend, I finally was able to lift the head off the column and remove the broken (mangled really) rack. I now need to purchase a new rack. There are no existing parts for this model. So, I seek your wisdom on how to select a rack that will fit. What specifications should I be looking for? I found three searching online. A Craftsman that fits a 15-inch machine that is 26 inches in length and 4 TPI. A PM/Jet rack that is 31 inches in length and is 5/8 inches thick. It does not give TPI. And I found a Delta Part no. 1346083 (no specifications listed and am awaiting a customer service reply). The old rack appears to have been 33 inches in length (though I take that this is the least important spec). It is 3/8 inches thick. I measured between 4 and 5 teeth per inch. Do you also have any other recommendations of sources for a new rack. Thanks in advance.