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Cutting 57mm holes in the instrument panel.....how to?



 
 
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  #1  
Old November 12th 10, 12:13 AM posted to rec.aviation.soaring
Guy Byars[_2_]
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Posts: 38
Default Cutting 57mm holes in the instrument panel.....how to?

On Nov 11, 7:09*pm, "John Bojack" wrote:
Here in the states I find it impossible to find metric hole saws.....so,
what have others done when cutting new panels for 57mm instruments?

Thanks!

J4


I simply bought an adjustable hole saw. I measured it out to
precisely 57mm and cut several holes in scrap material to check and
make sure the saw was set to the right size. As long as I cut soft
material (aluminum, wood, fiberglass... etc) it worked perfectly.

  #2  
Old November 12th 10, 12:21 AM posted to rec.aviation.soaring
Eric Greenwell[_4_]
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Posts: 1,939
Default Cutting 57mm holes in the instrument panel.....how to?

On 11/11/2010 4:13 PM, Guy Byars wrote:
On Nov 11, 7:09 pm, "John wrote:

Here in the states I find it impossible to find metric hole saws.....so,
what have others done when cutting new panels for 57mm instruments?

Thanks!

J4

I simply bought an adjustable hole saw. I measured it out to
precisely 57mm and cut several holes in scrap material to check and
make sure the saw was set to the right size. As long as I cut soft
material (aluminum, wood, fiberglass... etc) it worked perfectly.


Or just use a 2.25" standard USA hole saw. It's only 0.006" bigger than
57 mm, and you'll never notice the difference.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm http://tinyurl.com/yb3xywl
- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what you need to know tinyurl.com/yfs7tnz

 




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