Prefered method for drilling holes in the body - Defender Source
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Old November 3rd, 2010, 03:25 PM
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Prefered method for drilling holes in the body

I need to drill some holes in the tub for NAS tail lights. I've used a hole saw and a wood template in the past but surely there is a better way? Maybe I just need a hole saw with finer teeth?
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Old November 3rd, 2010, 03:45 PM
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Hole saw works, but you need to control the speed( keep it slower) and spray WD-40 around the bit and material while drilling.

For smaller holes, I use a step drill.
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Old November 3rd, 2010, 05:26 PM
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Q.Max Hole Punches make a neat burr free hole and don't have te be be centred like a holesaw or a step drill.


I don't know what you call them in the US, but this is what I'm referring to -

http://cgi.ebay.com/Q-Max-Sheet-Meta...-/310226500399


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Old November 3rd, 2010, 06:09 PM
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We call that a "knockout punch" in the US. They're nice.
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Old November 3rd, 2010, 09:20 PM
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Tape the part you are going to drill with several layers of tape. It will help minimize scratches.
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Old November 3rd, 2010, 09:28 PM
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Doug Crowther
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I opened the holes on the 130 up with a die grinder and carbide burr,look in the cabinet I keep the air tools in. If its not there I can bring it down next trip.
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Old November 3rd, 2010, 10:32 PM
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[QUOTE=EWR;249024]Hole saw works, but you need to control the speed( keep it slower) and spray WD-40 around the bit and material while drilling.

X2 on that, if you are going to use a hole saw be careful. I had a couple of "incidents" doing the same thing on my truck.
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Old November 4th, 2010, 08:51 AM
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Thumbs up Adjustable Circle Cutter

I've have luck with this tool on flat surfaces. The trick is to keep it square with the hand drill. Also, with a single cutting edge, you get less chatter.

Cheers...
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Old November 4th, 2010, 11:00 PM
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if you use a hole saw run it backwards will cut threw alum. the knock out punch any electrician has one in the work van as they are expens.to buy.
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