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This post was last edited by goldliyang on 2020-5-6 at 11:33: the RT3422 pressure-opening tool from the cutting series in pipeline construction plans. The RT3422 pressure-mounted hole opener is the ideal tool for installing branch pipes in pipelines under water pressure, steam pressure, and air pressure. It has a maximum hole-opening capacity of 2", and its corrosion-resistant design makes it suitable for working with various metals. Being lightweight, the RT3422 is the best tool for making holes under pressure. 1. It is simple to operate, only 18\" long, lightweight, and features a simple yet sturdy design – making it ideal for locations where tight connections are required and access is limited. 2. Heavy-duty design: The robust machine is made of corrosion-resistant and durable metals, providing long-term benefits. 3. Built-in shut-off valve for easy and simple removal of debris. 4. The independent feed mechanism can be operated separately to control the rotation of the tool, thereby extending its service life. 5. The RT3422 model can make pressure-mounted openings in steel pipes, cast iron pipes, ductile cast iron pipes, and plastic pipes. 6. Versatile; the maximum pressure inside the pipe for the RT3422 model with pressure-opening function: water pressure not exceeding 35 bar ； The pressure of air, steam, and gas does not exceed 10.5 bar. 7. The tool has barb-shaped drill bits, which prevent the saw pieces from falling into the tube and avoid contamination of the tool. Specifications of RT3422 pressure hole opener: Hole-making capacity: 3.4 – 2". Accessories: Welded threaded sleeves, external screw thread sleeves, external pipe thread sleeves. Tool feed: 14". Activation: manual ratchet, pneumatic ratchet (sold separately). Cutting tool field: The rotating sleeve is at the pole of the threaded tap. Pressure: Water 35 bar @100°F; air, steam, and natural gas 10.5 bar @370°F. The RT3422NPT complete set includes a pressure-opening tool equipped with a shut-off valve, a coupling, two RIDGID small shovel wrenches, a heavy-duty sawing bit shaft, and a ratchet wrench; all of these are housed in a sturdy yet lightweight tool box. It is particularly suitable for use with copper, plastic, malleable cast iron, and cast iron, and the barbed drill bit can be removed separately.