Drilling the hole into the caliper was quite a task,that material is very hard upon drilling through the drill squiled like a pic ,then came the fun part :threading a 3 mm hole took the longest ,but i made it freehand lots of oil and easy on the twist ! Was a fun project ,the handle on the tailstock was easy to attach just next time i have to remember to drill the holes in round stock in a V-block otherwise they are slanted !
Manfred