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10 5/8"IADC645/642

Product Description
  Cutting Structure
  Tooth profile for gauge teeth for ovoid tooth, inner row for conisphere tooth.
  Designed for medium-hard and abrasive formations with high compressive  strengths ,such as limestone、sandstone、dolomite、chert and copper ore.
  Application:29,000-42,000Psi(200-290MPa)
 
  Shirttail
  Two rows tungsten carbide on the shirttail; Wear resistant carbide on the side of lug.
 
  ProductSpecification
  IADC Code: 645/642
  Bearing Type:Roller-Ball-Roller-Thrust Button/Sealed Bearing (Open Bearing) bearing/Open bearing
  Circulation Type: Jet Air
  Cutting Structure:-Inner and Nose rows: Conical    -Gauge rows: Ovoid-Heel rows: round
  Pin Connection: 4 1/2” API
  Bit Diameter: 200 mm (7 7/8“)
  Product Weight: 34KG (75Lbs)
 
  OperatingSuggestions
  Weight on Bit: 23630-47250 Lbs
  Rotary Speed: 100-60 RPM   A
  ir Back Pressure: 0.2-0.4 MPa
 
 
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