Grant,
>A "hole saw" would be useless in 3/4" thick steel plate and without a
>pilot drill center just wouldn't work no matter how rigid the setup.
I don't agree with all of that. I had no trouble sawing through 5/8" hot
rolled
steel and could have easily sawed though a thicker piece if I needed
to. It took about 15-20 minutes per hole.
Yes, a center pilot is needed *or* at least
have another "thick" piece of metal pre-drilled to use as a guide.
Use plenty of oil, remove chips as they accumulate and don't
"push it". Let the hole saw do the work. Use a drill press! Use
a sharp bi-metal hole saw....no cheap stuff!!
73,
Charlie, N0TT
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