2. High quality Diamond Grain provide fast and smooth drilling.
3. The inside of the drill bit is filled with dense cooling wax for cooling the diamond bits
4. With 5/8-Inch-11 Thread, Used on angle grinder,very easy to operate Notice: if you want to fit our hole saws on drills or other machine, you need an adapter, such as SDS,Hex, Round Plus Shank
5. Dry or wet drilling or beveling Porcelain/Tile/Ceramic/Marble/Brick/Stones/Granite/Masonry.




Q1: What products does NINGBO T-WIN specialize in?
A: Ningbo Tianwen specializes in hardware products, focusing on diamond core bits.
Q2: Are your products of high quality?
A: Yes, at NINGBO T-WIN, we prioritize delivering high-quality products to our customers. We ensure that our products meet stringent quality standards and undergo thorough quality control processes
Q3: When can I get the price?
A: We usually quote within 24 hours after getting your inquiry.
Q4: Can I get customized products from your company?
A: Yes, we offer customization services to meet specific customer requirements. Our team can work closely with you to understand your needs and provide tailored solutions.
Q5: What is your approach to customer service?
A: At NINGBO T-WIN, we prioritize exceptional customer service. Our dedicated team is committed to providing prompt and personalized assistance, addressing inquiries, concerns, and providing technical support whenever needed.
Q6: Can I get a sample?
A: Yes, of course. We offer free sample for a small amount of products, but freight collected. You are welcomed to contact us for more details.
