IADC 712
Size 10 5/8 in (270 mm )
Type 10 5/8 K712
Drilling Applications
- Drilling operations in coal mine, iron mine and copper mine.
- Applicable for drilling hard formations with high compressive strength, such as quartzite, syenite, gabbro, and chert, etc.
Design Specifications
Bearing type Roller-Ball-Roller-Thrust button
Cutting structure Tungsten Carbide Inserts:
- Inner Rows and Nose Rows Conical Inserts
- Gauge Rows Conical Inserts
Product weight 74 kgs
Pin connection 6 5/8 API Reg
Operating Parameters
Weight on Bit 35000ï¼85000 lbs
Rotary Speed 50-90RPM
