I've never had a wattmeter on one to tell. Typical drill and saw batteries are generally not over 2 ah, some even less. Sawing tends to be more continuous, and you can easily drain one in 5 min. Drilling, particularly using a screw gun, is more like many small disconnected discharges, so I can only guess what the draw is. Less than a saw for sure, but most holes drill in less than one battery.
Pretty vague data, but all I can give you.
Regular AC stuff draws more power, and you can feel it's more. Small 110v saw draws about 8 amps, a big worm drive framers saw draws about 12 amps. Drills, depending on size draw 4-8 amps. Those are max amps, like long rips, or drilling steel or hard woods.
My best guess, the 18v tools would be equivalent to half the power of the AC tools at most. maybe less. I bet none draw more than 10 amps of 18v for long. My guess is all are going to run on less than 200w. If they used more, they'd never run on such a small battery.
My 24v lawmower, I have had a wattmeter on. It can easily draw 50 amps in thick grass. No controller, just a motor hooked to the battery. It can amp spike it to all hell. No wonder the SLA's didn't even last a month. Rips like hell on 20 ah of lipo though.