The Fast Drill does not affect the Thermal Drill. It only affects the smaller drills which are applied to safes or doors.
For now you can do this with CoSMOS.
Place the drill, check the time, now hit escape to pause.
Open CoSMOS, switch to float truncated, search for the time.
Go back in game, unpause and let it pass another second.
Go back to CoSMOS and search for the new value, and there should be just 1.
Now change that value to 1 and the safe will instantly open.
It might seem like "a lot of work", but it honestly isn't. It takes about 20 seconds to do it, compared to waiting several minutes for the drill to actually finish.
Not that I advocate doing it, but this even works in online play (I play cheating with friends that also cheat etc.)
It's a little more trciky but:
Play in windowed mode in a smaller resolution than your desktop so you can have more screen space.
Now the drill, but this time as you can't pause, you need timing, so open CoSMOS and watch as the counter go down, and simply hit search for a value right when it hits it in game. Then make another search as the timer goes down.
It takes a little practice, but I can do it consistently within 20 seconds here also. Also this only works if you're hosting the game, and again, I can't stress this enough, if you're going to cheat online, only do it in a game closed off to the public, and only play with friends that are cool with cheating.
[Edited by TenAtoB, 8/14/2013 1:54:31 AM]
[Edited by TenAtoB, 8/14/2013 1:58:14 AM]