No - he said "This is from the underside, as if you were the wall".
He also said he tried it on an offcut, so it seems the trunking and angles are simply not compatible or hes simply not pushing enough to overcome the lip

No - he said "This is from the underside, as if you were the wall".
In post #13 ? Did you read the words in that post? The first line?
...I now suspect the channel is bending in on one side, so when the corner cap is pushed into place, rather than slipping past the channel and clicking into place, it pushes the channel inwards
Buy one of these at the same time.
Get these chisels. I've got one of their cheaper EDC chisels for notching studwork etc and it's brilliant! Got one of their hammers too, possibly my new favourite too manufacturer, just a shame they don't make a huge rangeI'm scared to go back to Screwfix to get those chisels I fancied![]()
Ts need a bit of careful work with a Stanley knife to get right - how many do you have to do?
It's for being the (probably) most appropriate tool for cutting a hole in the side of the trunking where you need a T junction when you aren't using T-junction trunking accessories.Bas whats the stanley knife for please,
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