PDC Drill Bits

10‑Inch (254 mm) 5‑Blade PDC Bit

This 10‑inch (254 mm) 5‑blade PDC bit is engineered for medium‑hard and complex drilling formations. It adopts standard 3‑1/2‑REG API connection , equipped with 1308 ultra‑hard polycrystalline diamond compact cutters and built‑in jet nozzles. Optimized blade profile and chip evacuation channels deliver balanced ROP (rate of penetration), high impact resistance and long service life. It is a cost‑effective rock‑breaking solution for water well drilling, mineral exploration, geothermal drilling and shallow oil‑gas projects. The 5‑blade layout balances cutter density, avoiding impact damage from insufficient blades and cuttings blockage caused by over‑abundant blades, compatible with most conventional rig output parameters.

Key Specifications

  • Bit Size: 10 inch / 254 mm
  • Blade Quantity: 5 blades
  • Connection Thread: 3‑1/2‑REG API thread
  • Primary Cutters: 1308 ultra‑hard PDC compact cutters
  • Circulation System: Multiple jet nozzles for targeted mud flushing & cutter cooling
  • Bit Body: High‑toughness 42CrMo alloy body for wear‑resistance and deformation resistance
  • Cutter Layout: Balanced cutter placement to resist impact and abrasion, mitigate chipping risk

Suitable Formations

Ideal for soft to medium‑hard rock: shale, mudstone, sandstone, siltstone and partial limestone interbeds. Works well for mixed interbedded formations with minor abrasive particles. Not recommended for extremely hard compact granite or heavily abrasive gravel layers; impregnated diamond bits are preferred for such harsh conditions.

Application Fields

  1. Water Well Drilling : Medium‑depth drinking‑water wells and agricultural irrigation wells, improving penetration rate and reducing tripping operations.
  2. Mining Exploration : Shallow mine exploration holes and pilot blast holes, offering stable drilling performance and lower cutter loss.
  3. Shallow Geothermal Drilling : Shallow geothermal heat‑extraction boreholes; nozzles support efficient cuttings removal with mud circulation.
  4. Shallow Oil & Gas Projects : Shallow pilot wells and monitoring wells, fit for standard rotary drilling rigs.
  5. Geotechnical Engineering : Foundation investigation boreholes and engineering geological sampling holes.

Product Highlights

  1. 1308 Ultra‑Hard PDC Cutters : Superior abrasion resistance, slows down cutter wear and extends total bit running hours.
  2. Optimized 5‑Blade Structure : Uniform stress distribution reduces drilling vibration, delivers smooth borehole and minimizes borehole collapse risk.
  3. 3‑1/2‑REG API Thread : Widely adopted industry standard, high interchangeability with most drill pipes for quick assembly & disassembly.
  4. Jet Nozzle Circulation System : High‑pressure mud sprays through nozzles to flush cuttings away and cool PDC cutters, effectively prevent bit balling.
  5. High‑Strength Alloy Body : Excellent torsion and shock resistance, reduces body cracking and deformation, cuts overall drilling expenditure.

Operation Notes

Use a mud pump with matched flow rate to guarantee nozzle flushing performance. Adjust WOB (weight on bit) and RPM according to rock hardness; avoid overload shock which may lead to PDC cutter chipping.