How To Enlarge Round Hole In Thin Metal - Router Forums
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post #1 of 35 (permalink) Old 08-12-2016, 07:19 AM Thread Starter
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Default How To Enlarge Round Hole In Thin Metal

Any ideas on how to enlarge a hole in thin metal? The hole is about 1 inch diameter and I need to enlarge it to 1 1/8 inch diameter. I was thinking about using a rasp or file. I had also thought about sandwiching the piece between 2 pieces of wood that have 1 1/8 holes in them so the waste part of the metal would be exposed and doing it on the drill press with a roto zip metal cutting bit.
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post #2 of 35 (permalink) Old 08-12-2016, 07:32 AM
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Try something like this...

https://www.google.com/aclk?sa=l&ai=...XPYB0sQwjwI7wE

...not necessarily from Walmart...
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post #3 of 35 (permalink) Old 08-12-2016, 07:40 AM
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Quote:
Originally Posted by Nickp View Post
Try something like this...

https://www.google.com/aclk?sa=l&ai=...XPYB0sQwjwI7wE

...not necessarily from Walmart...
Harbor Freight is cheaper

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post #4 of 35 (permalink) Old 08-12-2016, 07:43 AM Thread Starter
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Try something like this...

https://www.google.com/aclk?sa=l&ai=...XPYB0sQwjwI7wE

...not necessarily from Walmart...
Good idea. Thank You.

P.S. Is Harbor Freight out of the question too?
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post #5 of 35 (permalink) Old 08-12-2016, 07:52 AM Thread Starter
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Harbor Freight is cheaper
I buy stuff from HF and some ain't half bad. One big surprise was their $99 (sale price) hardwood flooring nailer.....did my whole house with no jambs or misfires. HF high speed stuff is a little scary....an oscillating multi tool blade broke apart on me.....the tool wanted to oscillate but the blade didn't.
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post #6 of 35 (permalink) Old 08-12-2016, 07:59 AM
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On the job site there is a task that I enlarge a hole from 1/2" to 1" in 1/16" mild steel. I use the HF brand for the task. They have held up well. It will quickly cut sheet metal be careful or it will be too large.

Learning is an exciting adventure
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post #7 of 35 (permalink) Old 08-12-2016, 08:08 AM Thread Starter
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Originally Posted by paduke View Post
On the job site there is a task that I enlarge a hole from 1/2" to 1" in 1/16" mild steel. I use the HF brand for the task. They have held up well. It will quickly cut sheet metal be careful or it will be too large.
Weekend HF sale....just got their coupons. I am headed there. I'll pick up the bit.
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post #8 of 35 (permalink) Old 08-12-2016, 08:23 AM
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Good thinking guys.
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post #9 of 35 (permalink) Old 08-12-2016, 08:59 AM
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w/ all the HF traffic and money it sends back to china, I wonder which community business or American manufacturer will fold next...
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If only new layers hadn't been added....

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post #10 of 35 (permalink) Old 08-12-2016, 09:27 AM
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Stick
Is the tool even made in the USA? Blame Obama not me. Why? The biggest cost is energy. China has cheap manpower. We have an abundance of energy here We have had Obama stepping on the pipeline for eight years. You want clean manufacturing get the infrastructure in place that makes sense for investment in facilities.
Where did china get all the machinery they use to make this junk? They bought a lot of it from closed US factories. Why did the factories close? It costs were to high. Cheap energy produced in the USA will return new investments stateside.
So please desist from guilt tripping those that buy at harbor freight

Learning is an exciting adventure
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