Do you provide after-sales support?
Yes. We provide remote technical support, wear analysis, troubleshooting suggestions, and long-term project tracking for key clients.
HLDRILLS KNOWLEDGE CENTER
Insights & Field Knowledge
Technical guidance, project experience and practical selection knowledge for drilling professionals.
Which industries do your products serve?
Our drilling tools are widely used in mining, quarry engineering, water well drilling, geological exploration, geothermal drilling, and foundation engineering.
How do you control product quality?
From raw material selection to machining, heat treatment, inspection, and final delivery, each batch follows full-process quality control.
Can you provide samples for testing?
Sample orders are available for standard products. Customized samples can be arranged after technical confirmation.
Do you support technical selection before ordering?
Yes. Our team can review working conditions and recommend suitable DTH hammers, drill bits, drill rods, or matching tool systems.
Can drilling tools be customized for specific formations?
Yes. We provide tool structure, alloy grade, thread, and face design customization based on drilling depth, rock hardness, and equipment type.
What is the lead time for regular orders?
3-7 days for in-stock orders; 15-30 days for bulk custom orders. Stable logistics for key markets.
What is the OEM cooperation process?
Demand communication → Solution confirmation → Sampling → Mass production → Quality inspection & delivery. NDA signed for full confidentiality.
Is there a MOQ requirement for products?
No MOQ for standard in-stock products, sample orders are supported. Bulk custom orders are priced by specifications.