Self-locking ratchet design, improve work efficiency, automatic lock during vertical feed and shear, safe and no rebound Suitable for thick knives, large diameter cutting, 0 - 1.7 inches (0 - 42 mm) openings, steel plates, large diameter cuts, and 0 - 27 mm openings Spring-loaded ergonomic handles provide grip and strong force, faster cutting, and single cuts improve work efficiency PVC pipe cutter body is selected with a hard steel construction and is large enough for heavy duty use An essential cutting tool for plumbers, electricians and auto mechanics, Manufacturer: LEMEIGUO