133mm PDC Drill Bit
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Factory 133mm 3-Wing PDC Drill Bit PDC blades bit for Mining
Type: 3-wing PDC DRILL BIT
The 133mm three-wing concave PDC drill bit carries 1308 series PDC cutters (8mm) on three blades with a central concave dish profile.
Factory Price High Resistant Rapid Chip Removal 133mm 4-wing PDC Bit PDC Blade Bit
Type: 133mm Super Four Wings PDC Bit
The concave crown profile reduces initiation torque by 25-30% compared to flat-face geometry, preventing motor stall in underground coal mining environments with limited rotational power.
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