I would not get under any car supported by anything from HF I buy from HF but would not put my life I the hands cheap overseas built tools just my opinion
I have one if you don't have lots off wood and if lazy of not strong or have bad back or don't like standing in cold putting lots of wood in do not get one in I am in Maryland and when temp is in teens I burn a s-it ton of wood I am heating 60x60 16ft tall and 40x40 12ft tall and always 70 deg...
mag drill only way to go 5/8 annular bit is probably 30-50 $ you can rent mag drill 50 a day bit will drill 700 holes with lube buy name brand bit not ebay cheapo