I was looking at the manual for the HF 5 speed lathe (on line) today. In the section on removing the headstock spur center and I would think a mandrel as well you need a knockout tool, which they don't include. I looked on line and the only one I could find was sold my delta and was about $85.00. I would think one could be made but I'm not sure what to use, I'll need to made one if I go with the HF lathe. Thanks for the help.