The bar-making industry has defined a general standard for the types of adjacent teeth. Common ones are 5/ 16/ 14 iron teeth 5/ 16/ 18 iron teeth (male teeth) 3/8//kloc-0 wood teeth 3/8//kloc-0. Take 5/ 16/ 14 iron teeth as an example. 5/ 16 refers to the tooth thickness of 5/ 16 inch, and 14 refers to the number of teeth per inch (note that it is not the total number of teeth on a male tooth). 1 inch is 2.54 cm. With this standard, we can easily measure the number of teeth in our club.
The big head stick is generally suitable for American billiards, and the material of the big head stick is maple. The front part is made by bicycle or wood splicing. Small club heads are usually made of maple, oak or ash, which become rectangular strips in one piece. After two years of natural air-drying, the club is made of conical thread without deformation. The big head shaft rotates strongly; Small clubs are slightly stronger, and small-diameter clubs need to control precision and fineness. In different applications, the big head is generally suitable for American billiards with 16 colors. Small head is suitable for English billiards, such as English snooker and French Karen.