Nu Flow’s Pneumatic Micro-Cutter is used to clean and remove pipe debris, calcite and roots from the inside of a variety of pipe including steel, cast iron and orangeburg. The system rotates at about 2,000 revolutions per min. and will negotiate turns of 90° in pipes down to 2” in diameter. The Light-Duty Electric Micro-Cutter is light, compact, user friendly and can negotiate turns of 90°. Designed for indoor use of commercial, industrial and high-rise buildings where it is difficult for pneumatic access, the cutter is best suited when little cleaning and reinstating is necessary. Nu Flow Technologies.