Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does not properly deburr the OD of 1/2" copper tubing

Does not deburr the OD of 1/2" copper tubing as prep for a Sharkbite fitting. In fact, it rips up the outside edge of the tubing ( L hard) worse than it was after just cutting with a good cutter. May work for plastic, did not try.