Using three remote-inflated air bladders, the arm of the Micro Automatic small-diameter lateral and drain cutter from Pipeline Renewal Technologies positions itself remotely by creeping and climbing, clamps itself for precise cutting in vertical or horizontal orientation, and uses a full 4-inch feed on the cutting head. Just 72 mm in diameter, the arm fits through small openings, and its agile articulation facilitates precision cutting as well as maneuvering through 90-degree bends in 4-inch lines. This versatile cutter can handle lines from 3 to 6 inches or 8 to 10 inches with modification. The cutter is controlled with a CAN-bus-based controller with twin multifunction joysticks. This allows for easy position recall, making repetitive work quick and intuitive. 866-936-8476; www.pipelinert.com.