ZEP Products Co makes Drill Chill for boring holes in metals. Get something like that next time and turn the hole saw in the drill slow to save the teeth.

When using a bi-metal hole saw for steel, you should use oil for lube just  Like any other drill. Once they heat up they will
dull like yours did. I have done alot of work with them, and the oil make the cut faster and the saw last longer.

Oh, yeah - that would have been so much fun, trying to squirt oil on the belly armor, STILL ON THE VEHICLE!  I can see it now, oil in my eyes, in my hair, in my mouth.

Did I say that I'm lazy, and don't want to drop the armor to do this???

Oh, yeah - that would have been so much fun, trying to squirt oil on the belly armor, STILL ON THE VEHICLE!  I can see it now, oil in my eyes, in my hair, in my mouth.

Did I say that I'm lazy, and don't want to drop the armor to do this???

You could have brought the hole saw to Moab, and I bet someone there would have done it for 3 beers and a few bites of your meeaaalllllssssss.

Wait till your next oil change, get prepared with a remote oil filter setup, and the valve thingy, and install all that when you do an oil change. Only difference you won't have the magnetic drain plug.

Wait till your next oil change, get prepared with a remote oil filter setup, and the valve thingy, and install all that when you do an oil change. Only difference you won't have the magnetic drain plug.

Remote Oil Filter???  There IS such a thing?  I would KILL for that on my wife's Grand Vitara!!!