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12 1/4 inch IADC 127 Milled Tooth Drill Bit
IADC CODE
IADC | Rock formation | WOB (KN/mm) | PRM(r/min) |
116/117 | Low compressive strength, high drill-ability and extremely soft formation, like soft shale, clay, etc. | 0.35~0.90 | 180~80 |
126/127 | Low compressive strength, high drill-ability and soft formation, like shale, clay, soft limestone, salt rock, etc. | 0.35~1.00 | 180~80 |
136/137 | Soft to medium soft with low compressive strength or soft with hard interlayer, like anhydrite, soft limestone,sandstone, etc. | 0.37~1.05 | 130~60 |
216/217 | Medium hard formation with relatively high compressive strength and hard interlayer, like hard shale, sandstone, limestone, etc. | 0.5~1.20 | 100~50 |
Company Profile
Hebei Yichuan Drilling Equipment Manufacturing Co., Ltd
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Our Advantage
1. We are manufacture can supply good quality goods and competitive price.
2. We not only have ourselves design but also can accept customization.
3. We have fast and on time delivery time.
4. Every bits have it’s quality assurance.
5. Contact our anytime if you have any question with bits.
6. 24 hours on time reply.
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