[y cymro]

Originally Posted by Scottie22

Thanks for the help fellahs, I particularly liked the "pilot hole" idea, which I normally use, but did not on this occasion!

Also the shallow-angle cut bit, which ought to help.

I will be taking your advice, as at forty quid per side, its an expensive F.U.to make!

As well as the above advice, don't forget to support behind the hole being drilled with a piece of wood or similar.

Manufacturer's advice on machining Perspex here: http://www.theplasticshop.co.uk/plas...pex_manual.pdf