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Thread: Hardened Drill Guides
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2nd Sep 2020, 11:20 PM #1Most Valued Member
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Hardened Drill Guides
Wanting to buy 3 drill guides, size number 11 for the pop rivets, if anyone has a few laying around. Preferably with a collar to stop them falling through.
Can't seem to find them on Fleabuy, either that or I'm looking for the wrong thing.
Thanks in Advance,
KrynTo grow old is mandatory, growing up is optional.
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2nd Sep 2020, 11:52 PM #2Golden Member
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I didn't think that anyone in Australia would still be making drill bushes, but apparently, at least one company does: https://www.fjbushings.com.au/
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6th Sep 2020, 05:42 PM #3Diamond Member
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Would the inner section of a bearing be suitable as a drill guide?
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7th Sep 2020, 12:16 AM #4Most Valued Member
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I suppose it would do, just a matter of finding some that size. 4.85 mm or .191" could be a tricky thing to find. Will speak to the bearing blokes tomorrow.
Thanks,
KrynTo grow old is mandatory, growing up is optional.
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7th Sep 2020, 10:16 AM #5Most Valued Member
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I have some 7/8” 4140 I acquired recently, I could cut a few small pieces off and put a #11 hole through it for you if that would work?
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7th Sep 2020, 04:23 PM #6Diamond Member
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7th Sep 2020, 06:52 PM #7Philomath in training
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It really depends on how much use the jig will get as to whether bearing steel would work. Certainly better than MS though. The big problem with using a bearing inner is that they are quite squat, so hole alignment becomes harder. You also need to secure them. Most drill guides are either long enough (2 to 3x diameter) to push into a frame or have a flange for attachment.
Michael
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7th Sep 2020, 09:00 PM #8Most Valued Member
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7th Sep 2020, 09:07 PM #9Most Valued Member
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The jig gets used quite often, 3 holes per plate. It's used for making the clearance light plates on trailers. Recently did 22 plates for the one trailer, some take only 6 but on average about 10 per trailer, times that by 6 trailers a month, = 180 holes per month.
Trying to talk boss into getting a punch and shear machine is like pulling teeth!!!!!!
KrynTo grow old is mandatory, growing up is optional.
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