Reed's DM3MECH is a Mechanical Hot Tapping Machine. It has a 3/4 In. - 4 In. valve capacity. It weighs 12 lbs. This machine can be used with the right hole saw, cut, or drill into copper, steel, or plastic pipe for up to 4 inches. This machine comes with a 7/16" Hex Arbor, 1/4 In. Drill Bit, Hole Saws (5/8", 7/8", 1-1/8", 1-3/8", 1-3/4 In, 2-1/4 In, 3-1/4 In. ), Allen wrenches, and a convenient tool box.