This Samurai Ichiban 13" (330mm) Curved Pruning Saw Replacement Blade is a professional pruning saw blade and offers the latest in blade technology, the “precision toothing” refers to the angle of the teeth along the length of the blade. The unique design, only associated with Samurai, optimizes the cutting performance throughout the pull stroke cutting action. This saw blade is incredibly smooth and allows you precise cutting. Samurai saw blades are taper ground and thinner so they cut faster and easier. The impulse hardened, permanently filed teeth are incredibly durable. The legendary sharpness of Samurai saws is achieved by using a whetstone and then chrome plating to reduce friction during use.