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Hole saw diameter adjustment?

dogdog

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Nov 15, 2011
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if you have access and space for router and jigs to cut your hole... the Jasper circle cutting Jig for routers will get you the exact dimension of any holes you need in 1/16 increments.
 
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JeepYJ

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Dec 25, 2015
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If you whack the hole saw with a hammer and make it slightly oval, you can make the undersized one cut slightly larger.
Next you’re going to be suggesting using a torque wrench as a breaker bar!
 

dutchgray

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Sep 28, 2014
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Dorset. England.
Next you’re going to be suggesting using a torque wrench as a breaker bar!
I will admit its a bit of a rough method. But when the hole saw you have is cutting just too tight for what you need you do what you gotta to get the job done.
Its not like hole saws are that great to begin with.
 

Hohn

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Aug 25, 2016
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Diesel Central, Indiana
These have to be cheap and fast to install as well as flat as we stack them sometimes.
How cheap? How fast? How flat?

You're thinking of this the wrong way.
Why do they have to be flat? Couldn't they be "stacked" inside the next size larger PVC pipe and store just fine?


Why not just use a large rubber stopper?
#10 rubber stopper goes from 42mm to 50mm. A bit over a dollar each, is that cheap enough?

 

rharman

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Apr 22, 2012
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SoCal
if you have access and space for router and jigs to cut your hole... the Jasper circle cutting Jig for routers will get you the exact dimension of any holes you need in 1/16 increments.
That's nice. I have a couple of circle jigs for my router but they don't go that small. Added that to my Amazon list.
 
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Kaizen

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Jan 9, 2015
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New England
ok I tried to keep the info brief but i see this raised questions.
These plugs are 13 cents each. I use them in the lid of paint buckets with a fly cutter. I would not try and fly cut through 3/4 inch plywood. I'm trying to keep as little variation as possible as i have a lot of hives and equipment. The ones in the paint lid have two smalls holes that the bees can feed from. The bucket sits over this hole. The lid plug does not have holes and is watertight but in a pinch i could use one off a bucket or vice versa.
Damon.....These are for feeding sugar syrup. The budket sits upside down on top of the hive. I'm trying it out and will expand if i like it. I can refill a yard of 30 hives in the time it would take me to open up and get to an internal feeder on just a few.

So I initially started this lid drill journey with a 2" holesaw. As i said it was just slightly too big. So i googled it and got this.
IMG_0831 (1).jpeg
So i found and was waiting for a 50mm hole saw and hence asked the question how to modify it. But when i got it I realized it was actually smaller then 2" by a 32nd.
IMG_0833 (1).jpeg
I gave it a try and its absolutely perfect. Blowing compressed air at the saw blade kerf not only kept it cool but made it cut like new every time. I went through a dozen or so just using a hand held drill as my press can't reach.
Here is a video that perhaps will show why other plugs would not work for various reasons.


I do appreciate everyone trying to help. Looks like i'm off to the races.
 
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sz0k30

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Feb 12, 2014
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886
Location
SE Michigan
One of my hobbies is beekeeping. I want to drill a hole in their roofs and use a paint plug to seal the hole when not in use. The plug requires a tight friction fit to keep water out.
50mm and it is too loose.
Instead of worrying about the hole size, why not just do something to simply increase the diameter of the plug? Wrap a layer or two of tape around it.
 
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Kaizen

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Jan 9, 2015
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Location
New England
Looks good. I hope you won’t mind if we continue to solve your problem in increasingly more complex and expensive ways.
NOPE!!! It is what we do and I know in three years some poor soul will search google on how to modify a hole saw and find this thread and ten other ways to do it. Happens to me more often then you'd think. No need for AI when we got GJ
 

Old tool guy

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Apr 13, 2023
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Syrup goes into the bucket, hole is capped, bucket upside down on top of the hive. How do the bees get to the syrup?
 

Firebrick43

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May 12, 2015
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Location
West central Indiana
Syrup goes into the bucket, hole is capped, bucket upside down on top of the hive. How do the bees get to the syrup?
At about the 16:00 mark in the video it talks about the lids having holes drilled in them for the sugar water to drip from down into the hives and the size/number of the holes
 
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Kaizen

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Jan 9, 2015
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Location
New England
I just have an empty deep on top of my brood boxes for feeding. Keeps the syrup from freezing as well.
Yes but that becomes a problem when you are 30 or 40 hives. You have to have all those extra boxes which is a waste of space so you get frames then you have to store those if you use the boxes. I built a 4'x36'x5' tall mezzanine in my garage and half of it is equipment. It all gets used at some point in the year but i'm moving toward the way the big guys do stuff. Every minute I can save moving stuff adds up fast.
 
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