Transcription of Recommended Make-Up Torque, API Tolerances, …
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Recommended Make-Up Torque, API Tolerances, …
Recommended Make-Up torque , api tolerances , TFA ChartDrill BitsRoller ConeBIT make -UP1) Use the correct bit ) Inspect the bit for potential damage incurred during shipping. make sure the inside of the bit is ) Place the bit breaker into the bushings or breaker ) Place the bit into the ) Apply thread compound to the bit s API connection. Make-Up the bit using the appropriate torque value as in the chart above. Roller Cone Bits API Bit Tolerances RolleR Cone Bit Bit Size oD tolerance In. In. 6-3/4 and Smaller to +1/32 6-25/32 to 9 to +1/32 9-1/32 to 13-3/4 to +1/32 13-25/32 to 17-1/2 to +1/16 17-17/32 and Larger to +3/32 Roller Cone Bits Recommended Make-Up torque * RoCk Bit Size tool-Joint type Recommended torque In. In. ft-LbS JouLeS 4-5/8 to 4-3/4 2-7/8 API Reg 4500/5500 6102/7458 5-5/8 to 7-3/8 3-1/2 API Reg 7000/9000 9492/12204 7-1/2 to 9 4-1/2 API Reg 12000/16000 16272/21696 9-1/2 to 14-1/4 6-5/8 API Reg 28000/32000 37968/43392 14-1/2 to 28 7-5/8 API Reg 34000/40000 46104/54240 28 8-5/8 API Reg 40000/60000 54000/81000 note: the tool joint type for the 14-1/2 to 17-1/2-inch roller cone bit range is either 6-5/8 or 7-5/8 inches API Reg.
Recommended Make-Up Torque, API Tolerances, TFA Chart Drill Bits Roller Cone BIT MAKE-UP 1) Use the correct bit breaker. 2) Inspect the bit for potential damage incurred during shipping.
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