Nq+1 H13 Impregnated Core Drill Bits

Nq+1 H13 Impregnated Core Drill Bits. 15mm Standard Crown Height: Provides 25-30% more drilling footage than industry average, reducing replacement frequency. H13 Diamond Matrix: Optimized for hardest strata (Mohs 7.5-9.5) like quartzite and calcite for extended lifespan. Customizable Crown & Water Outlets: Crown height and water outlets support customization to meet specific drilling requirements. Multi-Hardness Series Coverage: Available in H3 to H13 series to cover soft to ultra-hard rock types without switching bits. Vacuum Sintering Technology: Unique process significantly improves sharpness, lifespan, and cooling efficiency of drill bits. Sample Fee Refund Policy: 100% refund of sample fee for next order with quantity >=50pcs, allowing risk-free testing. Fast Standard Delivery: Standard products ship within 3-7 working days; urgent orders can be shipped in 3 days. OEM/ODM Customization: Supports custom diameter, matrix, label, and logo; customization fee waived for orders >=200pcs.