so, to get a good finish had to cut it 4 times then file it, a regular pipe cutter won't do, I used a metal saw (backwards). It's pathetic they don't just do them with both sides regular pipe jointing! .. I also 'squeezed' the brass inside the large nut so to facilitate its grip on the corrugation (that and the rubber olive is what'll hold together) .. Thanks to the regulation standards geniuses damn thing is so thick it touches the back of the oven so I had some handy metal net and wrapt it to protect it.
