The Reed DM3MECH Mechanical Hot Tapping Machine enables safe, under-pressure branch connections on ¾" to 4" steel, copper, brass, or aluminum pipes. Ideal for water, air, and low-pressure steam systems (up to 300 psi), this kit includes the main body assembly, shafts, hole saws, arbor, and accessories in a durable storage case. Note: Valves, saddles, and piping are supplied by the operator.