Wholesale High Air Pressure 90mm 3.5" QL30 DTH Hammer Rock Drill Bit

Ultra-Durable Tungsten Carbide Tip
– Precision-forged with high-grade tungsten carbide for extreme wear resistance and prolonged service life in abrasive rock formations.
Optimized Flush Hole Design
– Engineered for superior air circulation to reduce dust buildup and enhance drilling efficiency in deep-hole applications.
High-Pressure Compatibility
– Rated for heavy-duty air pressure up to 30 bar (435 psi), ideal for demanding mining, tunneling, and quarrying operations.
Heat-Treated Alloy Steel Body
– Reinforced with advanced heat treatment for shock absorption and fracture resistance under intense impact loads.
Precision-Ground Threads
– CNC-machined threads ensure seamless compatibility with QL30 DTH hammers, minimizing downtime during bit changes.
Versatile Application Range
– Perfect for hard rock drilling in mining exploration, geothermal wells, and infrastructure construction projects.
Bulk Discount Advantage
– Direct-from-factory pricing for large-scale procurement, backed by global logistics support.