8 1/2" M722 Core Bits

8 1/2" M722 Core Bits :

Product Specification

·    Bit Size: 8 1/2"

·    IADC Code: M722

·    Cutter Type: Natural Diamond

·    Cutter Quantity: 6 pcs/CT

·    Crown Profile: Short Parabolic Outer Cone

·    Gauge Length: 1.5"

·    Nozzle Quantity: 0.2~1.5

·    Connection Options: CHUAN8-3CBS / CHUAN8-4CBS

·    Weight: Based on actual products

·    Rotary Speed (RPM): 40 ~ 80

·    Weight on Bit (KN): 20 ~ 100

·    Flow Rate (lps): 10 ~ 25

·    Suitable Formations: Limestone, Dolomite, Sandstone

Product Description

The 8-1/2" natural diamond core bit (IADC M722) is a high-efficiency drilling tool widely used in oil, gas, and geothermal well drilling. Featuring a short parabolic outer cone crown with high-density diamond particle teeth and natural diamond inner/outer gauge protection, it delivers superior attack capability, service life, and core recovery in medium hard to hard abrasive formations including limestone, dolomite, and sandstone.

Features

·    Short Parabolic Outer Cone Crown Design – Optimized crown profile with high-density diamond particle teeth improves attack capability, service life, and coring rate.

·    Natural Diamond Inner and Outer Gauge – Natural diamond gauge protection increases wear resistance and stability during coring operations.

·    Optimized Waterway Design – Advanced waterway configuration ensures thorough cleaning and cooling of the drill bit, extending bit life.

·    Versatile Formation Application – Suitable for coring in medium hard to hard formations with abrasive properties — limestone, dolomite, and sandstone.

·    Multiple Connection Options – Available with CHUAN8-3CBS and CHUAN8-4CBS connections to suit different bottom hole assemblies.