8 3/8" FG515GT , Rubber Sealed Roller Bearing , With Gage Protection , TCI Tricone Bit
PRODUCT SPECIFICATIONGS
Bit Size : 8 3/8 inch ( 212.7 mm )
IADC : 515
SERIES : FG
Tooth type : ( TC I) Tungsten Carbide Insert
Connection : 4 1/2 inch API REG PIN
Nozzle Three jet(side) nozzles,
Bit Weight: 40kgs
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Types & IADC Code |
415 |
435 445 |
515 525 |
535 545 |
615 625 |
635 | |
WOB |
KN/mm (Bit Dia.) |
0.35~0.95 | 0.35~0.95 | 0.4~0.7 | 0.4~0.7 | 0.45~1.1 | 0.5~1.2 |
Lb/in. (Bit Dia.) |
2000~5428 | 2000~5428 | 2285~4000 | 2285~4000 | 2571~6285 | 2857~6857 | |
Rotation Speed (Rpm) | 150~60 | 150~60 | 140~80 | 120~80 | 110~60 | 100~50 |
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.