Customized: | Non-Customized |
---|---|
Standard: | AISI, API |
Length: | Taper-length |
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BIT SPECIFICATION | ||
Bit Size | 8 1/2'' ,215.9mm | |
IADC Code | 537 | |
Connection | 4 1/2Reg | |
Nozzle Qty | 3 | |
Rotary Speed(rpm) | 120~40 | |
Weight on Bit(KN/MM) | 0.4~1.0 | |
N.W./G.W.(KG) | 38/44 | |
Formation | medium hard. |