Squeezing 5 inch ducting out a 127mm cored hole

Teige · 30 Nov 2016

Hi all, I have cut a hole with a 127mm diamond corer, in order to take what was advertised by TLC as 120mm solid pipe. This is to duct a cooker hood.
The pipe is actually 125 ID and 127 OD nd the fit is extremely tight. I can only find 125mm pipe so far, not 120mm.

Does anyone have experience of bullying this pipe through the hole? Grease, block and hammer?
Cheers!

Jackrae · 30 Nov 2016

You might manage to mill the hole slightly larger by running the core drill through at a very slight angle. Say 4 runs at 90 degrees apart from one side of the wall and the same from the other.

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Squeezing 5 inch ducting out a 127mm cored hole

Teige

Jackrae

DIYnot Local

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