We have a cheap power miter box with a standard carbide blade in it, Cuts pvc like a hot knife in butter, smooth square end, with no cleanup required. Have an abrasive cutoff saw for the rigid and emt. round file to clean the burr off, run the rigid through the handheld power threader and away you go.
The abrasive cutoff saw works wonders with the sealtite ,mc and unistrut too.
Any body else use a pvc wire saw for those "hard to reach" cuts?
Trainwire
