Roger (K8RI) wrote:
> Most of the 1/2" and 5/8" variable speed drills will turn less than 60
> RPM, but you need one that has a motor up to the job. I have 4. 2
> Lithium battery powered and 2 AC powered. I have burned up the motors in
> three. One was actually blowing flames when I was drilling 3/4" holes in
> 1/2" thick, 4 or 5" I-beams.
>
> 73
>
> Roger (K8RI)
My Milwaukee is the plug in type (yes they still make them). I have
power at the tower for the raising winch so battery operation is
not required. It overheats after a minute or so when the load is
large. I don't see any solution to that in a drill you can hold
in your hand; its limited by physics. When the drill is cooling,
I crank by hand. The drill and I are a tag team :-). The winch
needs to rest too so it doesn't overheat.
Rick N6RK
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