
Impregnated Core Bit Pq Diamond Coring Drill Bits. 60 Years Manufacturing Experience: Earliest factory producing drilling tools with over 60 years of industry experience. Full Customization Support: Supports customization from samples, designs, or full customization with minor options. ISO Certified Quality: Certified under ISO9001:2015, ISO45000:2018, and ISO14001 management systems. 100% Finished Product Inspection: Strict visual and function inspection for all finished products before shipment. Low Minimum Order Quantity: Accepts orders starting from just 1 piece, ideal for testing or small batches. Comprehensive Warranty: Provides 6-month warranty with free replacement for quality issues caused by us. Professional Technical Support: Detailed guidance on drilling parameters, pressure, and speed for different rock types. Direct Factory Service: Direct manufacturer service including hotel booking and airport/railway station pickup.