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What tool cuts square holes

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Mickwhitt

Just pop along to the hardware store and buy a box of 3/8 inch square holes. Careful bringing them home as they might fall out of a hole in the box.

 

 

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Jeff-C175
24 minutes ago, Mickwhitt said:

Careful bringing them home as they might fall out of a hole in the box.

 

Unless it's a round hole.  I recall something about fitting a square hole into a round one... or something like that!

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Mickwhitt

This is one of my solutions to the problem. 

20210313_114829.jpg.1f0e870f683820f39ff38d14d72dabfc.jpgIts an Italian Opus Brevettata die filing machine.

Built to file the relief angle inside press dies its a really hefty machine.

Can also be used as a vertical power hacksaw. 

20210313_114432.jpg.f204aa9904e8e7de5db6e2d8988f5ef0.jpgIt files on the down stroke but can lift the workpiece on the up stroke so the two fingers hold the work down and stop it becoming a power hammer on your fingers!

20210313_114753.jpg.1049c7c9240700c135c6b5a7440afff6.jpgThis is just a two minute job to show its operation. Much better results can be achieved with a bit of care.

 

 

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Mickwhitt

The pointed tube is an air blower fed from a diaphragm compressor built into the machine, keeps the work surface clear of filings. 

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rjg854

Where's the fun in that? @Mickwhitt way to easy. :laughing-rolling:   Surely is quite the piece of equipment :handgestures-thumbupright:

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Mickwhitt

This is a 1 inch square hole filed into a 2 inch thick piece of steel using the die filing machine.

That would have gotten pretty boring with needle files.

20210313_162334.jpg.06be9022b6c719f59bf4123df59fbc9c.jpg

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rjg854

Fer sure ;)

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DennisThornton

 

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lynnmor

I was surprised that rebar would harden since it is often used in weldments.  I guess that there is plenty of carbon in it since it is something close to scrap metal.  If the guy would have used oil on his homemade broach, it would have worked better.

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DennisThornton
On 3/11/2021 at 8:15 AM, Mickwhitt said:

Just pop along to the hardware store and buy a box of 3/8 inch square holes. Careful bringing them home as they might fall out of a hole in the box.

 

 

Only available in metric sizes over here!

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