The professional tubing cutter has a hardened stainless steel blade that is designed to cut all flexible plastic hose/tubing up to 1.5" outside diameter. Both the hole punch & professional hole punch are designed for comfortable use. They punch holes in 1/2", 5/8" or .710" hose to insert PC drippers or 1/4" fittings. The black hole punch includes 10 hole plugs.