Tungsten Carbide Inserts tricone bit is also called TCI tricone bit. Because of its versatility and performance, it's still one of the main Rock Bits in use today. It is widely used for oil& natural gas, water well, geotechnical, environmental, geothermal, construction, exploration and mining drilling.
Rock bits are divided into steel tooth bit and TCI tricone bit. The size is 4 3/4'', 5 1/2'', 6'', 6 1/2'', 7 1/2'', 8 1/2'', 9 1/2'', 10 5/8'', 11 5/8'', 12 1/4'', 13 5/8'', 14 3/4'', 15 1/2'', 16 1/2'', 17 1/2'' etc..  

To increase steel teeth life, steel teeth are hardfaced with wear-resistant tungsten carbide based material. The gauge may be protected with tungsten carbide inserts. Shirttail is hardfaced along its leading edge.

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