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        12 1/4” FJ537G TCI Tricone Bit

         

        PRODUCT SPECIFICATIONGS
        Bit Size: 12 1/4inch(311.2mm)
        IADC: 5 3 7
        SERIES: FJ
        Tooth type: (TCI)Tungsten Carbide Insert
        Connection 6 5/8inch API REG PIN
        Nozzle Three jet(side) nozzles,
        Bit Weight: 100kgs

         

        RECOMMENDED ROCK FORMATIONS
        Adapted to be used in medium soft with harder, more abrasive streaks(hard shale, mudstone, soft limestone, sands etc)

         

        SIZE AVAILABLE

        Form 7 7/8inch to 17 1/2inch
         

        RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

         Types & IADC Code

         117

         127

         437

         447

         517

         527

         537

         547

         617

         627

         637
         WOB  KN/mm(Bit Dia.)  0.35~0.8  0.35~0.9  0.35~0.9  0.35~1.0  0.45~0.95  0.45~1.1  0.5~1.1
         Lb/in. (Bit Dia.)  2000~4271  2000~5142  2000~5142  2000~5714  2571~5714  2571~6285  2857~6285
         Rotation Speed (Rpm)  240~80  240~70  240~70  220~60  220~50  200~50  180~40

         

        The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.
         

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