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Bit Size 8 1/2”(215.9mm)
Bit Connection 4 1/2”
IADC Code: M323
Blade Count 6pcs
Primary Cutter 16mm
Nozzles 6pcs
Junk Slot Area (in2) 21.2
Bit Rotary Speed (rpm) 60~260
Weight-On-Bit (KN) 25~100
Flow Rate (lps) 28~32

Application

Very soft, soft and medium soft formation of low resist compression strength, or hard interlayer, such as anhydrite, cotton rock, sandstone and so on.

Feature

Balanced force design of spiral blades endows the bits with good orientation,little radial vibration as well as ability to increase cutter placement.

The reasonable layout of patented PDC cutters in various structures at different locations endows the bits with strong aggressiveness and anti-abrasiveness.