PDC Core Drill Bit

89/102mm PDC Double-Tube Coring Bit

The 89/102mm PDC Double-Tube Coring Bit is designed for geological coring and engineering investigation. It connects to an 89mm core barrel and features a 102mm outer diameter , making it suitable for reaming and coring operations. With high-performance PDC cutters, this bit delivers excellent wear resistance, stable cutting performance, and long service life in mudstone, muddy sandstone, red sandstone, siltstone, strongly weathered formations , and other challenging ground conditions.

It is widely used in geological survey, building investigation, engineering investigation, geological exploration, rock coring, mining, water wells , and other projects. The double-tube structure helps reduce core washing and disturbance, improving core recovery and sample quality—ideal for continuous sampling, stratigraphic interpretation, and lithology analysis.

Product Features

  • PDC cutters : High wear resistance and efficient cutting performance.

  • Double-tube coring design : Helps protect the core and improve recovery.

  • 89mm core barrel connection : Easy to match and replace on site.

  • 102mm outer diameter : Designed for reaming and coring applications.

  • Wide formation adaptability : Suitable for mudstone, muddy sandstone, red sandstone, siltstone, and strongly weathered layers.

  • Multi-industry use : Geological survey, building investigation, engineering investigation, mining, water wells, and more.

Applications

  • Geological exploration coring

  • Building and construction investigation

  • Engineering drilling and sampling

  • Rock coring and formation analysis

  • Mining exploration

  • Water well drilling

  • Strongly weathered formation coring

  • Mudstone, muddy sandstone, red sandstone, and siltstone drilling

Why Choose This PDC Double-Tube Coring Bit ?

  1. High core quality : Double-tube structure reduces disturbance and improves sample representation.

  2. Durable and wear-resistant : PDC materials support long continuous operation and lower replacement frequency.

  3. Efficient drilling : Stable cutting performance in complex formations improves work progress.

  4. Clear compatibility : Connects to 89mm core barrel with 102mm outer diameter.

  5. Broad application : Suitable for geological exploration, water well projects, and more.

FAQ

Q1: What formations is this bit suitable for?
It is suitable for mudstone, muddy sandstone, red sandstone, siltstone, strongly weathered formations, and similar ground conditions.

Q2: What core barrel does it connect to?
It connects to an 89mm core barrel and has a 102mm outer diameter , mainly used for reaming and coring.

Q3: What projects can it be used in?
It can be used in geological survey, building investigation, engineering investigation, geological exploration, rock coring, mining, water wells, and other projects.

Q4: Why choose a PDC double-tube coring bit?
PDC cutters are wear-resistant and durable, while the double-tube structure helps protect the core and improve recovery and efficiency.