What is the model of the professional saw chain

　　What is the model of the professional saw chain?

　　1. The composition of a professional saw chain

　　The professional saw chain is composed of left cutting teeth, right cutting teeth, middle guide teeth (also called driving teeth) connecting pieces, and rivets.

　　2. The model of the professional saw chain and the size of the professional saw chain

　　Professional saw chains are represented by Latin letters and Arabic numerals. Due to different countries and manufacturers, the meanings of each letter and number are different, but what they mean is the pitch, the thickness of the middle guide tooth, the shape of the cutting tooth, and the Some variant characteristic symbols such as safety and wear reduction.

　　The pitch is the center distance between the cutting teeth, the middle guide teeth, and the two holes of the connecting piece. On the same type of professional saw chain, their pitch (hole distance) is the same, and all are expressed in inches in the imperial system. The measuring tools we use are all metric and must be converted when measuring. 1 inch = 25.4 mm, if you want to calculate the metric size, multiply 25.4 and the size it represents. Example B3L, pitch: 25.4×0.404 mm; thickness of middle guide tooth: 25.4×0.063 mm.

　　3. the matching of professional saw chains

　　Whether the professional saw chain and the chain saw match, mainly depends on the chain wheel of the chain saw, the length of the guide plate, the form of the guide plate head and the width of the guide plate guide groove. The pitch of the professional saw chain must be consistent with the sprocket, the gear of the guide head (if it has teeth), the thickness of the middle guide tooth is consistent with the guide groove on the guide plate, and the length is consistent with the circumference of the guide plate, the number of sprocket teeth and the sprocket It can be used only if it is consistent with the space distance of the guide plate.