I have used an evolution chop saw for trunking many times both metal and plastic and for big jobs it's unbelievably quick. For a few cuts I will use a small square and hacksaw or a mitre block if necessary. Sometimes I will scribe the cut if it's a dodgy corner. Or I'll just use prefab bends.
All depends on the size of the job, if there are a lot of cuts then sod doing it all by hand when a machine will make it quicker!
All depends on the size of the job, if there are a lot of cuts then sod doing it all by hand when a machine will make it quicker!