Coreless Concave Diamond Composite Drill Bit Reinforced Ball Bearing High-Efficiency and Model(173mm)

==========High-concerned chemical : NoneModel Number : CXJ20260327DIY Supplies : PlumbingMaterial : DiamondType : Gun Drill Bit

• Premium Diamond & Carbide Composite Construction – Crafted from high-quality polycrystalline diamond compact (PDC) materials combined with tungsten carbide matrix body for superior hardness and wear resistance. Designed to effectively cut through hard rock formations including granite, limestone, sandstone, and dolomite, providing extended service life in demanding drilling environments.
• Optimized 3-Wing Concave Geometry – Features a cone-shaped concave profile with three sharp PDC blades that efficiently remove material while reducing drilling friction. This innovative design helps improve penetration rates, minimize vibration, and maintain directional stability even in abrasive and fractured rock formations.
• Non-Coring Design for Rapid Hole Creation – Engineered for high-impact drilling without core extraction, enabling faster penetration in mining, construction, and geotechnical applications. The non-coring configuration reduces downtime and allows for continuous drilling operations in water wells, grouting holes, anchor cables, and gas drainage systems.
• Enhanced Chip Evacuation & Cooling – Multiple water holes integrated into the bit body provide efficient cooling for PDC cutters while effectively flushing debris away from the cutting surface. This helps prevent bit balling, reduces heat buildup, and maintains consistent cutting performance at depths exceeding 500 meters.
• Versatile Application Across Multiple Industries – Suitable for water well drilling, mineral exploration, coal mine gas drainage, geological sampling, slope stabilization, and tunneling projects. Available with 42, 50, or 73 female taper threads (customizable male threads) with diameter options from 56mm to 153mm to match various drill rig specifications.