Boris, you can do it with a ½ inch hand drill if you don’t have a drill press. You just need to start with a smaller drill (say 1/8 or 3/16)and work up to the final size. Slow speed and lube will get the job done.
The type of drills you need is similar to https://www.ebay.com/sch/i.html?_from=R40 https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR0.TRC0.H0.Xsilver+drill.TRS0&_nkw=silver+drill&_sacat=0 &trksid=p2380057.m570.l1313.TR0.TRC0.H0.Xsilver+drill.TRS0&nkw=silver+drill&_sacat=0 for over ½
And they even have titanium fairy dust coating (just me being sarcastic, most titanium nitrate coating on cheap drills is just for show and doesn’t really do anything. Give me a real hss or even better a cobalt alloy drill any day) but on a one off job you don’t need the best and greatest…
Mounting the top plate can be done many different ways, it could be welded to the jackscrew (fancy name for the end of the jack that comes out, on better hydrylic jacks it screws out). Or weld / attach a piece of pipe that just slips over the end of the jack. |Personally I would unscrew the jackscrew and put a piece of acme threaded rod to screw in place of the jackscrew And thread the acme rod into the plate, but I have a shop outside with a drill press, lathe and milling machine and welder….