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12 1/4″ STEEL BODY CUSTOM PDC DRILL BIT FOR HIGH-ROP DRILLING

ParametersSpecifications
Bit Size12 1/4 inch (311.1mm)
Body MaterialHigh-Strength Alloy Steel (AISI 4145H)
Blade Count5 / 6 Blades (High-Flow Design)
Blades / Cutters1608 or 1913 Premium PDC Cutters (16mm / 19mm)
Connection Thread6 5/8″ API Reg Pin
Nozzles6 – 8 Changeable Carbide Nozzles
Lead Time15 – 30 Days (Custom Engineering Available)

Product Highlights & Features:

  • High-Strength AISI 4145H Steel Base: Fully CNC-machined on advanced 5-axis precision equipment. It delivers exceptional structural toughness and impact resistance, effortlessly handling high torque and complex loads in directional and deep-well drilling.
  • Maximized ROP with Ultra-Large Junk Slots: Compared to matrix bits, our steel body design features thinner blades and significantly wider junk slots. This layout optimizes hydraulic flow, accelerates cuttings removal, eliminates bit balling in sticky shale, and maximizes your Rate of Penetration (ROP).
  • Advanced Hardfacing Technology: To fight fluid erosion, high-wear zones on the steel body are reinforced with advanced laser cladding and tungsten carbide hardfacing. This premium erosion protection extends the overall service life in harsh downhole conditions.
  • Cost-Efficient & Highly Repairable: The steel body offers excellent repairability. Worn or damaged cutters can be replaced and refurbished multiple times, significantly lowering your total drilling cost per meter.

Recommended Operating Parameters:

  • Rotary Speed (RPM): 80 – 240 r/min
  • Weight on Bit (WOB): 30 – 150 KN (6,700 – 33,700 lbs)
  • Max Flow Rate: 50 – 85 L/s (790 – 1340 GPM)

📌 How to Order & Get a Quote:

Due to the customized nature and varying geological requirements of steel body PDC bits, our standard manufacturing period is 15-30 days. All orders are securely processed via official Corporate T/T (Bank Wire Transfer).

Please click the WhatsApp button on the bottom right or send your drilling formation details / IADC requirements directly to our engineering team to get a 100% factory-direct solution within 12 hours.