This heavy duty, solid steel pruner has a built in wire cutter and a self-sharpening blade. The blade is rated SK5 Japanese steel. It cuts up to 2.5cm (1″) diameter twigs and branches, and it’s ideal for live stems, as it makes a very clean cut. It even features a sap groove, that channels sap and gum away from the cutting edge. This forged bypass pruner is a nice, high-quality tool that will last for many, many years. It carries a lifetime warranty from the manufacturer.