[PSUBS-MAILIST] hole saw

Mon Jul 16 11:16:03 EDT 2018

The hole saw is maybe not the problem.

Butto get  a slow turning high torque hand drill..

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Betreff: [PSUBS-MAILIST] hole saw
Datum: 2018-07-15T23:46:12+0200
Von: "hank pronk via Personal_Submersibles" 
<personal_submersibles at psubs.org>
An: "Personal Submersibles General Discussion" 
<personal_submersibles at psubs.org>

Hi All,
I need to cut a 8 inch hole through 1\4 inch of 516-70  I am tempted to 
just try a bi-metal hole saw.  I can't use heat at all so it has to be 
machined or something like it.  Has anyone tried this?  I can buy the 8 
inch hole saw for around 100 dollars.
Hank

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