ratchet action copper tube cutters This unique tube cutter operates by allowing the internal cutting head mechanism to rotate within its hard composite shell. It sits comfortably in the palm of your hand and its ergonmic shaped casting combines maximum functionality with minimal grip. Its handy design means it can easily be stripped down for routine oiling and maintenance. As with all cutters, we highly recommend that you avoid cutting pipes that are coated in paint or flux. ” The Ratchet Action Copper Tube Cutters have an automatic action that allows for constant hand grip on the tool whilst cutting . Fast, clean cuts. Easy to replace cutting wheels. Ergonomic design and smooth operation limiting risk of hand fatigue. Patented design.