Chain saw should be regarded as the invention of our great inventor Luban - a derivative of sawing and development, just like hand saws, chainsaw, are to facilitate our daily life of cutting operations, to facilitate efficiency. Manual saw power is too small, only suitable for small workload. Chainsaw, as the name suggests is to use electricity, and it is this feature restricts the scope and area of its use. If we have a lot of work to do in the field, we have to choose a good chain saw. When we choose a product, we must first pay attention to choose a reliable manufacturer, which can not be ignored. A guaranteed manufacturer can guarantee the quality and safety of the product. In addition to select the brand we also need to pay attention to is to choose a suitable for our work of the chain saw, according to our frequently used occasions, the workload to weigh, mainly according to the length of its guide points to points. Accessories must be complete, easy to sale.