Customization: | Available |
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Usage: | Metal Drilling, Masonry Drilling, Well Drilling |
Bearing Type: | Roller-Ball-Roller-Thrust Button/Sealed Bearing/Op |
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Cutting Structure | |||
Ovoid insert on gauge, the bullet shaped on inner rows and Nose Rows. Designed for hard and semi-abrasive formations with high compressive strengths ,such as hard shale, sandstone,limestone, dolomite, chert and copper ore. Application:46,000-56,000Psi(317-386MPa) |
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Shinttail Protection | |||
Hard metal on lug;Wear resistant carbide on shirttail lip and lug. |
ProductSpecification | |||
IADC code | 545/542 | ||
Bearing Type | Roller-Ball-Roller-Thrust Button/Sealed bearing/Open bearing | ||
Circulation Type | Jet Air | ||
Cutting Structure | Inner Rows: the bullet shapedGauge and Nose Rows: ovoid insert Gauge bevel protection: Round | ||
Pin Connection | 6 5/8" API | ||
Bit Diameter | 279mm | ||
Product Weight | 83KG |
Operating suggestions | ||||
Weight on Bit:43,000-66,000 Lbs Rotary Speed:60-90RPM Air Back Pressure:0.2-0.4Mpa |