139,7 (5 1/2) TCNP525K

TechnoPro 5 1/2" Tricone Drill Bit – IADC 525 (Sealed Roller Bearing)

TechnoPro Tricone Drill Bits are engineered for water well drilling, HDD (Horizontal Directional Drilling), geotechnical, and general construction drilling.
This 5 1/2" IADC 525 model is designed for soft-medium, abrasive formations, providing exceptional durability, smooth rotation, and extended service life.

Built with a sealed roller bearing system, optimized TCI cutting structure, and enhanced leg/body protection, this bit delivers stable performance, longer footage, and reduced downtime across demanding drilling environments.

It is also fully compatible with HDD drilling rigs such as Vermeer and Ditch Witch, including setups using mud motors or dual-rod systems for precise pilot-hole drilling.

Recommended Ground & Formation Types (IADC 525)

This bit is ideal for drilling in:

• Medium to medium-hard formations

• Moderately abrasive rock

• Sandstone, limestone, dolomite

• Calcareous shale, cemented shale

• Harder interbedded formations

• Claystone with mixed layers

• Consolidated soils with rock streaks

Recommended Rock Strength (UCS / PSI)

IADC 525 bits are typically used in formations with:

• 10,000 – 20,000 PSI unconfined compressive strength
  (Depending on drilling parameters and machine power)

• Circulation Type
  Jet Fluid
• Cutting Structure
  TCI
• IADC Series
  500
• TCI Shape
  Chisel
• Formation Type
  Soft to Medium
• Industry
  HDD
• API Thread Size
  Pin 2 7/8" Reg
• Size
  5 1/2
• Bearing
  Sealed Bearing