Rotary drilling tools (knife teeth) are a kind of drilling tools for construction machinery used for drilling holes in building foundation projects. They are mainly suitable for construction of soil layers such as sand, clay, silt, and soft rock, weathered rock, medium-hard rock, sand and gravel,

Take you into a day in Tianyue,our factory is specialized in manufacturing rock drilling tools,top-hammer tools, mining tools,construction tools,foundation tools,tunneling tools and  road milling tools.   Our main products are Drill Bit, Drill Rod, Coupling Sleeve, Shank Adapter coal mining bit,

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Extension drilling refers to the practice of extending the reach of the drill string to access deeper rock formations or to drill larger-diameter boreholes. Extension drilling is achieved by adding additional drill pipes or drift rods to the existing drill string, thereby increasing its length.This

The specification and hardness of the top hammer shank adaptor play a crucial role in determining the speed of rock drilling and the lifespan of the rock drill. It is essential for the hardness of the shank adaptor to be appropriate. If the shank is too soft, the service life of the rock drill will