三牙輪鑽頭用於石油開發鑽探、水井、煤田勘探、工程開發等用途， 適用於軟硬交錯地層，如軟頁岩、粘土、鹽岩、石灰岩、硬石膏、砂岩、礫岩、白雲岩、硬砂岩等

優點： 熱穩定性強，抗衝擊能力較強。

TCI cone bit used in oil drilling, water well, coal field exploration and development of engineering applications， apply to soft hard staggered formation, such as soft shale, clay, gypsum, limestone, gypsum, sandstone, conglomerate, dolomite, sandstone, etc .

Advantages: strong thermal stability, impact resistant ability is stronger.