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4-Wing Concave Non-Coring PDC Drill Bit - Precision Alignment & Anti-Deviating Design for Marble Quarry Horizontal Drilling [3-8m/hr in Granite/Limestone]

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4-Wing Concave Non-Coring PDC Drill Bit

Precision Alignment & Anti-Deviating Design for Marble Quarry Horizontal Drilling [3-8m/hr in Granite/Limestone]

Specifications

Model WCD‑75-101 Bit Type 4-Wing Concave Non-Coring Drill Bit
Borehole Diameter 75-101 mm (Custom Sizes Available) Matrix Material Tungsten Carbide Matrix with Cobalt Binder
Cutter Structure Concave Wings with Negative Rake PDC Inserts Connection API Reg Thread / Custom Pin Available
Compatible Rigs Horizontal Quarry Drill Rigs / Hydraulic Feed Systems Core Diameter Non-Coring
Drilling Medium Water Flushing Certification ISO 9001 & GB
Cutter Layout 4 concave blades with symmetrical PDC cutter distribution for directional stability
Drilling Efficiency 3–4 m/hr in Granite, 6–8 m/hr in Limestone
Service Life 150–200 m in granite applications (50% longer than standard bits)
Core Recovery N/A (Non-Coring Design)
Bonding Technology High-pressure sintering for cutter fixation; anti-wear coating on wing edges
Product & manufacturing images

Key Specifications

Model WCD‑75-101 Bit Type 4-Wing Concave Non-Coring Drill Bit
Borehole Diameter 75-101 mm (Custom Sizes Available) Matrix Material Tungsten Carbide Matrix with Cobalt Binder
Cutter Structure Concave Wings with Negative Rake PDC Inserts Connection API Reg Thread / Custom Pin Available
Compatible Rigs Horizontal Quarry Drill Rigs / Hydraulic Feed Systems Core Diameter Non-Coring
Drilling Medium Water Flushing Certification ISO 9001 & GB

Technical Features

Cutter Layout 4 concave blades with symmetrical PDC cutter distribution for directional stability
Drilling Efficiency 3–4 m/hr in Granite, 6–8 m/hr in Limestone
Service Life 150–200 m in granite applications (50% longer than standard bits)
Core Recovery N/A (Non-Coring Design)
Bonding Technology High-pressure sintering for cutter fixation; anti-wear coating on wing edges

Field Performance

  • Fujian Marble Quarry: Deviation reduced to 1.1% in horizontal holes, 40% increase in daily output using WCD‑130
  • Henan Limestone Site: WCD‑90 achieved 7.5 m/hr with no clogging under 60 L/min flushing flow
  • Guangxi Granite Operation: WCD‑160 sustained 3.5 m/hr over 180 m with 30% lower water pressure than standard bits