



Product Name | sintering diamond core drill bit |
brand | JinHengFeng |
material | diamond |
Applicable models | Angle grinder hand electric drill |







A: Yes, according to the hardness of Material and Material's feature, we have different typology respectively.
Q2: How can I get a sample to confirm the quality?
A: 1. Free sample: Regular specimen you can get free samples, just pay for the freight.
2. Customized sample: Please give me your design, but you need to pay for the sample fee and freight. We will return the sample fees after the order.
Q3: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock, or 15-20 days if the goods are not in stock, according to quantity.
Q4: Why should you buy from us not from other suppliers?
A: 1. Advanced equipment and technology
2. Excellent management and team
3. Fast response and shipment
4. Rich market and bidding experience
5. Efficient product development and customization
Q5: How do you solve when quality problems occurred?
A: Our aim is to have long-term cooperation with your esteemed company. We will work with you to solve both quality and technical problems. Please send us pictures or video. Our technician will analyze and offer a solving scheme. New placements will be sent to you directly.