In the drilling process, the drill bit is the main tool for breaking rocks, and the wellbore is formed by the drill bit breaking rocks. The quality of a wellbore formation and the time it takes to form depend not only on the characteristics of the rock formation being drilled and the performance of the drill bit itself, but also on the degree of compatibility between the drill bit and the formation.

Tungsten carbide drill bits are a type of cemented carbide drill bit, mainly made of sintered tungsten carbide and cobalt. They possess extremely high hardness and wear resistance, and are widely used for machining high-hardness materials such as stainless steel and cast iron.