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09-03-2008, 06:59 PM
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#1
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Junior Member
Join Date: Sep 2008
Location: Dallas Texas
Posts: 2
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mast drilling tool
Has anyone ever seen or know where i can get my hands on a jig that you fasten to the wall on the exterior of a house to drill a 2-1/2" hole throught the overhang and roof to install a 2" rigid pipe for a service mast?
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09-03-2008, 07:07 PM
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#2
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Scotchkote Haranguer
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 13,705
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I made a special hole saw for just such a prupose.
24" piece of 2½" IMC with a hole saw welded to one end, and a short piece of ½" hex stock welded to the other.
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09-03-2008, 07:16 PM
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#3
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Master Apprentice
Join Date: Jan 2008
Location: Eugene, Oregon
Posts: 293
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Is the hole just above the hole saw there so you can change out your pilot bit? My first though was "how do you change the pilot bit" then I noticed the hole. That is a great idea 480!!
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Kletis... 
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09-03-2008, 07:19 PM
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#4
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Scotchkote Haranguer
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 13,705
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Quote:
Originally Posted by Kletis
Is the hole just above the hole saw there so you can change out your pilot bit? My first though was "how do you change the pilot bit" then I noticed the hole. That is a great idea 480!!
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Yes, I notched the hole in the end of the IMC before welding on the hole saw just for changing the pilot bit.
Makes drilling masts super easy, and looks good when done....
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09-03-2008, 07:32 PM
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#5
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Master Apprentice
Join Date: Jan 2008
Location: Eugene, Oregon
Posts: 293
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Good work, looks nice!!
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Kletis...
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09-03-2008, 08:15 PM
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#6
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Senior Member
Join Date: Feb 2007
Location: CA/MI
Posts: 1,984
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Some times you can get it done with a really long 1/4" pilot bit.
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When ls lunch
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09-03-2008, 08:25 PM
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#7
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Moderator
Join Date: Jan 2007
Location: NY State
Posts: 3,912
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I use a laser plumb bob sitting right on the meter hub. Then drill through each layer with a hole saw with an extra long pilot bit.
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09-03-2008, 08:33 PM
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#8
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Darn good sparky!
Join Date: Jul 2008
Location: Sunny California!
Posts: 108
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that is a gread idea 480 sparky. i sure will buy one of those if they were for sale
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09-03-2008, 09:29 PM
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#9
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Senior Member
Join Date: Oct 2007
Location: NC
Posts: 1,628
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Ever get the first hole in the soffit done and then above it is a roof rafter?
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09-03-2008, 09:57 PM
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#10
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"A" inside wireman
Join Date: Sep 2007
Location: Ocean, NJ
Posts: 4,366
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Quote:
Originally Posted by 480sparky
I made a special hole saw for just such a prupose.
24" piece of 2½" IMC with a hole saw welded to one end, and a short piece of ½" hex stock welded to the other.
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That my friend has to be the single most usable jig/tool I have seen in this forum.
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09-03-2008, 11:30 PM
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#11
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Golden Controls
Join Date: Jan 2008
Location: Tulsa, Oklahoma
Posts: 329
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Quote:
Originally Posted by randomkiller
That my friend has to be the single most usable jig/tool I have seen in this forum.
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It seems like it would be unwieldy to use though. With that much spinning mass does it get kind of hard to control sometimes?
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09-04-2008, 12:23 AM
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#12
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Senior Member
Join Date: Jan 2007
Location: Los Angeles
Posts: 270
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09-04-2008, 05:56 AM
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#13
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"A" inside wireman
Join Date: Sep 2007
Location: Ocean, NJ
Posts: 4,366
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Quote:
Originally Posted by Wireless
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The difference with just a plain extension is the center can be off almost the entire diameter of the soffit hole and you wouldn't realize this til you tried to slide your mast through. I have seen many masts that are crooked a shell just observing driving around. With the jig you have a solid point of refference. Using it with a right angle drill, I don't think it would be very hard to control.
__________________
A Veteran - whether active duty, retired, guard or reserve - is someone who, at one point in his life, wrote a blank check made payable to "The United States of America," for an amount of "up to and including my life."
"One Nation Under God"
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09-04-2008, 09:21 AM
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#14
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Scotchkote Haranguer
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 13,705
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Quote:
Originally Posted by dowmace
It seems like it would be unwieldy to use though. With that much spinning mass does it get kind of hard to control sometimes?
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Not really. It's 'held in place' by the first hole I drilled in the soffit, using a standard hole saw.
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Googlin' my way to wisdom.
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09-04-2008, 12:00 PM
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#15
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Senior Member
Join Date: Mar 2007
Location: here
Posts: 7,518
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480:
When will you get this through your head send me you great ideas before posting it. We will market it and you'll get a percentage of the profits* in lieu of posting the pic of this and having Greenlee steal it.
Would .25% work for you????????????
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09-04-2008, 03:20 PM
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#16
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Scotchkote Haranguer
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 13,705
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Quote:
Originally Posted by brian john
...Would .25% work for you????????????
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I wanna check. Is that 25%, or 0.25%?
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Googlin' my way to wisdom.
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09-04-2008, 05:36 PM
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#17
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Junior Member
Join Date: Sep 2008
Location: Dallas Texas
Posts: 2
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better idea
My old boss who was retired from libby glass in toledo OH must have made his but it looked like it came from a major tool maker i have it in my head and if anyone wants to have it mfg i would be happy to tell you how to make it
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09-04-2008, 06:04 PM
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#18
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Senior Member
Join Date: Mar 2007
Location: here
Posts: 7,518
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POINT 25%=.25=dot25% or 1/4 of a percent GENEROUS huh?
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09-04-2008, 06:26 PM
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#19
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Scotchkote Haranguer
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 13,705
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Quote:
Originally Posted by brian john
POINT 25%=.25=dot25% or 1/4 of a percent GENEROUS huh?
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I'll shop around until I find someone who pays 0.2 6%..... 
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Googlin' my way to wisdom.
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09-04-2008, 06:57 PM
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#20
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Senior Member
Join Date: Mar 2007
Location: here
Posts: 7,518
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Thanks you have a good idea, I want to Steal (I MEAN MARKET IT) and this is the response I get.
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