New products with super long life, high efficiency and wide application. 1. Super long life-as 10 times as cemented carbide drill bits under the same condition. 2. High efficiency-Times of lifting the drilling machine could be reduced sharply, and the average time efficiency could be increased more than 2 times. 3. Wide range of application-it could have a penetration of rock formation with f ≤12,especially for the rock formation with f=5-10.
1. PDC drill bits (non-core bits)
Application for penetration of gas hole, water-discharging hole, and grout hole under coal mine.
Size: dia 48-dia 270mm
Concave model, Pillar model, Blade model, Expansion model
2. PDC Drill bits (core bits)
Application for core drill of coal system stratum with hardness coefficient f<10 in geological exploratory. Size: dia 56- dia 133mm
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