I used these to finish off my DIY boxes. Be careful of the measurements, I went for 35mm for maximum grip around the corners (I was using 18mm plywood) only to find that the corners I was using were cranked to accommodate 30mm case angle, so I had to adapt the ends of each one.
They are easily drilled for fixing, but make sure you file the cut ends to avoid exposed sharp edges.
One small gripe I have is that when picking items from the catalogue, not all items have the same information displayed. In my case, I wanted to compare the weight of these with the plastic versions (which are also narrower). It would be great if all components had measurements and weights displayed. Most have, but not all, so it can sometimes be difficult to compare from the photos.