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Deep Rock Well Drilling Bits 12 1/4" FA437G 6 5/8" API REG PIN For Petroleum Drilling

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FLRT Bit

Deep Rock Well Drilling Bits 12 1/4" FA437G 6 5/8" API REG PIN For Petroleum Drilling

Deep Rock Well Drilling Bits 12 1/4 FA437G 6 5/8 API REG PIN For Petroleum Drilling
Country/Region china
City & Province beijing beijing
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Product Details

12 1/4" FA437G , Rock Bit, Water Well Drilling Bit , TCI Bit , 6 5/8" API REG. PIN​

 

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

 

Types & IADC Code417

437

447

517

527

517

527

537

547

617

627

637

 

WOBKN/mm(Bit Dia.)0.4~0.90.4~0.90.35~1.00.35~1.00.5~1.00.6~1.10.7~1.2
Lb/in. (Bit Dia.)2285~51422285~51422000~57142000~57142857~57143428~62854000~6857
Rotation Speed (Rpm)140~60240~70125~50~60110~50100~4080~4

The cutting structure of the bits varies according to the rock formation. Soft bits will have longer protruding teeth or chisel-shaped buttons, and fewer, more widely arranged teeth. Medium formation bits will have much closer teeth than soft formation bits, and the protrusion of the teeth is reduced. The teeth are very short and closely arranged on hard formation bits. Because of the shorter teeth the penetration of the rock bit during drilling is less than with soft or medium formation bits, but the other bits cannot be used in hard strata.

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