PDC Core Drill Bit

168/240mm PDC Reaming Core Drill Bit

This 168 to 240mm PDC reaming core drill bit is designed for geological coring and reaming operations. It connects to a 168mm core barrel and reams the hole to an outer diameter of 240mm . It is ideal for customers who need to enlarge an existing 168mm coring hole while maintaining efficient cutting performance. This design helps reduce tripping time and improves overall drilling efficiency.

The bit uses 1306 button-type PDC cutters , which provide excellent wear resistance and impact resistance. It performs well in sandstone, sandy gravel, pebble layers, broken formations, and complex ground conditions. Compared with standard PDC bits, this reaming core bit is optimized for hard interbeds, pebble layers, and fractured zones. The cutter layout is balanced, which reduces abnormal wear and cutter breakage.

For better flushing, the bit features enlarged water ports . This improves water flow, cooling, and cuttings removal. It helps prevent bit balling, water blockage, and regrinding. As a result, the hole bottom stays cleaner, penetration rate increases, and bit life is extended. In water well drilling, geological exploration, construction survey, mining, and rock coring projects, this design reduces the risk of sticking and bit burning.

This bit is suitable for geological exploration, building survey, engineering survey, rock coring, mining, water wells , and many other projects. It performs reliably in both shallow coring and complex formation reaming. In pebble layers and broken formations, where ordinary bits often suffer from blocked water ports, slow penetration, and rapid wear, this 168 to 240mm PDC reaming core bit offers better stability and durability.

Product Features

  • Connects to 168mm core barrel, reams to 240mm outer diameter

  • 1306 button-type PDC cutters for long service life

  • Enlarged water ports for smooth flushing and fast cuttings removal

  • Fast penetration rate and high drilling efficiency

  • Suitable for sandstone, sandy gravel, pebble layers, broken formations, and complex ground

  • Used for geological survey, building survey, engineering survey, water wells, mining, and rock coring

Applications

Geological exploration, engineering investigation, building survey, water well drilling, mining coring, rock sampling, complex formation reaming, pebble layer drilling, broken zone coring, and more.