China Manufacturer 48mm 2 Wings PDC Anchor Bit Roof Bolter Drill Bit for Mining


Type:PDC ANCHOR DRILL BIT The 48mm two-wing PDC anchor drill bit installs roof bolt holes in underground coal mine gate roads and maingate intersections.

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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