This precision-made Corona DualCUT Branch and Stem Pruner uses a forging process that compacts steel molecules into one of Corona strongest, most durable garden cutting tools while the patented dual cut blade and notched hook designs provide both a power zone and precision zone of cutting. Power zone uses the area of the notched hook and blade nearest the pivot point to hold branches, up to a 1 in. diameter, in place for maximum-leverage cutting. Then, the precision zone is used for quick, repetitive cuts of smaller branches. The hidden, long-lasting spring will not become clogged or lost with heavy usage.