Do not cut a square. This tool does not work as advertised. Garbage. Trust me - I'm a tool master and have given them a shot. I also bought a more expensive version hoping for better handling. This product does not operate with predictability or accuracy. Drill and body rotate and oscillate. Poor workmanship - low level port junk. Maybe good for a job, but you might as well keep looking. I give him a firm, "Go piss on the rope." Without even trying to return - a fictitious tax for this consideration.