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Old 10-06-2015, 03:09 AM   #21 (permalink)
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Originally Posted by oil pan 4 View Post
I used a 120v power drill, varrac, kill-a-watt meter and a hand held optical tachometer.
You'd need to consider the efficiency of the electric drill. 200 watts drawn by the drill won't equate to 200 watts of effort.
That is, how much power does the drill consume when it's just spinning freely?
Apologies if you already took that into account!

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