Hot tap using the DM3MECH Mechanical Hot Tapping Machine. With the right hole saw, cut or drill into copper, steel, or plastic pipe for up to 4" valves. DM3MECH contains the base machine, along with 7/16" Hex Arbor, 1/4" Drill Bit, Hole Saws 5/8", 7/8", 1 1/8", 1 3/8", 1 3/4", 2 1/4", 3 1/4", Allen wrenches and toolbox. Reed Manufacturing has been producing fine tools for worldwide professional trades since its founding, in 1896, by Carl Reed. Reed celebrates its 118th year of business in 2014. From the companys beginning, Reed associates have invented tools that continually become industry standards, including the Quick Release Tubing Cutter, various tools for plastic pipe, vises, plus Hinged Cutters and Rotary cutters for large diameter pipe.