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Thread: How do I drill these holes?
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14th March 2018, 08:06 PM #1GOLD MEMBER
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How do I drill these holes?
I need to drill some 3/16" holes in the lid of this box to attach the lid stay. The hole centres are only 12mm from the top panel of the box. Using my cordless drill would result in seriously skewed holes. Is there a cabinetmaker's trick to doing this?
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14th March 2018, 08:28 PM #2
A bradawl.
https://www.google.com.au/search?q=b...IjpnpqczGam7M:
You can make your own out of a small shank screw driver or if you have one of those small precision screw driver sets in a plastic box use the appropriate size one to create a pilot hole by turning backwards and forwardsThe person who never made a mistake never made anything
Cheers
Ray
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14th March 2018, 08:49 PM #3Taking a break
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One of these and a hex-shank drill bit https://www.bunnings.com.au/p-n-heav...hment_p6320592
This is why I love the Festool drill, got angle and offset heads for things like this.
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14th March 2018, 08:59 PM #4.
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Even cheaper - what about one of these?
https://www.ebay.com/itm/Flexible-Sh...YAAOSwzgBY25mR
You will have to buy a hex shank 3/16" bit
I also have an old small chuck on the end of a (too long) flexible shaft that I use from time to time.
If too much back torque is applied to my too long flex shaft its wants to wrap around itself.
Shorter shafts don't suffer so much from this problem.
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14th March 2018, 10:31 PM #5
Ive got a mig welder and oxy set 8 feet from from my wood work bench . Id probably weld the drill bit onto some rod as long as is needed and drill it from outside the perimeter of the top if possible.
Its amazing how many trips to the hardware store the welder saves doing this . Ive needed extended bits quite a few times.
Rob
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15th March 2018, 07:37 AM #6GOLD MEMBER
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Thanks for the replies.
Elan- I have a right angle drill adaptor, but it's much chunkier than the P&N one. I reckon that would do the job, but it's a bit expensive for now. I might put that on my Christmas list.
Bob- I was thinking of a flexible shaft last night. I should have one anyway, so I'll get one. You've also reminded me that I have a set of hex shank drill bits somewhere. I also have a long hex extension bit. The extension, hex bit and a handle would give me a 3/16" bradawl. It's very soft cedar, so a power drill isn't a requirement.
Rob- I also have oxy-acet. And a metal lathe. I could drill a 3/16 hole into the end of a piece of rod and silver-solder the drill bit in. That's a zero cost option and there's no waiting involved. The box is 900 wide, so the holes should end up very close to 90 degrees. Another option.
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15th March 2018, 11:44 AM #7GOLD MEMBER
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Job done. Thanks to all.
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15th March 2018, 10:58 PM #8New Member
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I am assuming you are not using "big" screws so if If the flexible shaft, fitted to a Dremmel perhaps, idea won't work, how about a pin-vice to hold the drill, or a Awl / bradawl with one side of the handle flattened to allow it to fit into the reduced access.
I'm sure my grand father had these tools which had been modified this way for just this scenario
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15th March 2018, 11:51 PM #9GOLD MEMBER
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23rd March 2018, 11:34 AM #10
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