Utilizes a spring to keep consistent compression on the cutting blade, allowing the user to cut through thin walled steel tubing without having to continually readjust the cutter. Simply turn the adjustment handle until the alignment marks line up, then turn the cutter to until the tubing is cut. Makes the task of cutting through steel walled tubing faster and easier. Handles tubing sizes from 1/8" to 1-1/8" outer diameter Professional grade quality Features a replaceable blade, 157-600 (order separately)