This saw blade has large aggressive teeth, designed to be an alternative to a small chainsaw. The blade is 330mm long. The teeth on this saw blade have NOT been hardened to allow you to sharpen them, when needed. The blades are hollow ground to reduce friction and increase easy of cutting action and speed. The teeth are set which means that you will cut a large amount of wood in one stroke. The blades are made from a material called SK4 which is a high carbon steel and then are coated in chrome to reduce rust and protect the blade. The Masaru is a PULL saw blade. All cutting occurs on the pull stroke. Put a minimal amount of pressure as you pull the blade toward yourself and then glide the saw forward. On the forward stroke the teeth will clear of timber or material and then on the pull stroke the saw will do the cutting again