The small hole rock drill has: 28-60 and other specifications of the one-line, cross-type, ball-tooth type rock drill bit, and the matching H22, H25 type 0.6M---8 meters of tapered joint brazing Rod. The product has obtained a number of national patents. Large-scale, assembly line operations have been formed, and the quality of each process is strictly controlled, and the unqualified products are prevented from entering the next process. Due to the excellent quality of the products and stable performance, the products are trusted by the majority of users. For many years, the production and sales of the products have been at the forefront of the domestic industry.