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  #1  
Old 05-02-2018, 12:09 PM
Iluke Iluke is offline
 
Join Date: Jun 2011
Location: Hope Valley, Rhode Island
Posts: 145
Default Borrow a 2 1/4 instrument punch?

Would anyone be willing to lend me a Greenlee style hole punch in the right size for a 2 1/4 inch steam gauge? I only need to punch 2 holes for AS and ALT gauges as back ups to the Dynon I?m installing. I?d pay shipping of course.

Thanks
Ivan
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  #2  
Old 05-02-2018, 12:13 PM
pa38112 pa38112 is offline
 
Join Date: Mar 2008
Location: Clarksboro, NJ
Posts: 922
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Sure, Send me your address.
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  #3  
Old 05-02-2018, 12:31 PM
Iluke Iluke is offline
 
Join Date: Jun 2011
Location: Hope Valley, Rhode Island
Posts: 145
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Ivan Luke
21 Forest Glen Dr
Hope Valley RI 02832

Thanks a bunch! I don?t mind buying tools, for only two holes it just didn?t make sense on this one
Ivan
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  #4  
Old 05-02-2018, 02:23 PM
noelf noelf is offline
 
Join Date: Nov 2007
Location: Cary, N.C.
Posts: 1,237
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Punch a test hole in some scrap metal before committing to the Greenlee punch. IIRC! The greenlee punch makes a different size hole from the hole you get with a true instrument punch.
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  #5  
Old 05-02-2018, 04:12 PM
cajunwings cajunwings is offline
 
Join Date: Jun 2007
Location: new iberia la
Posts: 823
Default 2 1/4? instrument holes

After a minor modification I’ve had great results with the metal cutting hole saws available at Lowe’s or Home Depot. Cut a test hole in scrap material similar to the panel and test fit the instrument. The hole will likely be slightly oversize. If so chuck the hole saw in a cordless drill, turn it slowly against a belt sander to remove some of the width from the outer teeth and test cut another hole. With a little grinding you can adjust the hole saw to a perfect fit.


Don Broussard
RV9 Rebuild in Progress
57 Pacer

Last edited by cajunwings : 05-02-2018 at 04:52 PM.
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  #6  
Old 05-03-2018, 05:21 AM
Iluke Iluke is offline
 
Join Date: Jun 2011
Location: Hope Valley, Rhode Island
Posts: 145
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Thanks. Good advice.
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  #7  
Old 05-03-2018, 08:36 PM
fabricflyer fabricflyer is offline
 
Join Date: May 2011
Location: Tylertown, MS
Posts: 190
Default

Ivan, I've got a true instrument punch if you want to use it. It cuts 2 1/4" &
3 1/8" holes. PM me with info if you want to use it.
Allen
Very slow build 7A
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