Rock Bits

6 1/2 inch Tricone Rock Bit – IADC 211

165.1 mm IADC 211 tricone rock bit with a 3 1/2 API REG connection.

6 1/2 inch Tricone Rock Bit – IADC 211 - Product Visual

6 1/2 inch Tricone Rock Bit – IADC 211

Kısa Tanıtım

165.1 mm IADC 211 tricone rock bit with a 3 1/2 API REG connection.

ÜRÜN AÇIKLAMASI

6 1/2 inch Tricone Rock Bit – IADC 211 is a three-cone drilling bit with a nominal diameter of 165.1 mm and a 3 1/2 API REG connection. The IADC 211 class identifies a Milled steel tooth cutting structure and Open roller bearing arrangement for soft to medium-hard formations.

The reference operating range is 40–300 RPM with 70–170 kN recommended weight on bit. Poor bottom-hole cleaning causes cuttings to be reground, raises heat and shortens cutter life. Final operating values must be checked against the formation, rig capacity and circulation conditions on site.

TECHNICAL SPECIFICATIONS

Product type Three-cone tricone rock bit
Nominal diameter 6 1/2 inch / 165.1 mm
IADC code 211
Cutting structure Milled steel tooth
Formation class Soft to medium-hard formations
Bearing arrangement Open roller bearing
Connection 3 1/2 API REG
Reference rotary speed 40–300 RPM
Recommended WOB 70–170 kN
Circulation / nozzles Central / 1
Reference make-up torque 9.5–12 kN·m
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