Model 9 5/8 Inch -Mining Rock Drill Bit

Bearing Type: Roller-Ball-Roller. Circulation Type: Jet air. Cutting Structure: Inner and Nose rows: Ogive. Gauge rows: Ovoid.
Heel rows: round. Pin Connection: 6 5/8” API. Bit Diameter: 244.5mm. Product Weight: 65KG. OPERATING SUGGESTIONS Weight on Bit: 39500-79130Lbs. Rotary Speed: 90-60 RPM. Air Back Pressure: 0.2-0.4 Mpa. Actual drilling parameters must be determined for specific applications..