iadc codes for drilling bits @en

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tricone bit bearings explained

Standard Open Roller Bearing- Standard open roller bearings are bearings without a seal. This means that the bearings are open to outside debris, which can enter through the cone. The advantage of an open bearing bit is that they are usually cheaper. They are ideal for drilling shallow holes, in the hundreds of feet. If […]


Rockbit IADC Code information   First Digit: 1, 2, and 3 designate STEEL TOOTH BITS with 1 for soft, 2 for medium and 3 for hard formations. 4, 5, 6, 7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for varying formation hardness with 4 being the softest and 8 the hardest. Second Digit: 1, 2, […]

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