28-70mm Diamond core drill bit for stone

Core drilling:Middle size of Diamond core bit for stone
Diamond core bit as diamond drilling bit is a special diamond tool is available for stone drilling, such as marble, granite, sandstone, limestone, etc. quick, smooth and accurate coring with professional results. Segment type can be done with crown or turbo type segment.
Diameter: 28-70mm
Thread size, 3/8 or 1/2 shaft without thread
Delivery time: Around 30days

Q: Where is your factory located? How can I visit you?
A: Our factory is located in Nanjing City, Jiangsu Province, China. You can fly to Nanjing International Airport and we will pick you up. Welcome you to visit our factory

Q: How is your quality?
We have a very strict control system and 100% QC inspection before shipment

Q: What should we do if your product can not run well?
A Give us a detailed report including pictures onsite and products pictures. Then analyze the reason try to find a good way to solve the problem If it's our problem and not possible to solve, then we will give replacement

Q: If we need technical support, can you offer us?
A: Sure, we have an experienced engineer team offering our customs with additional benefits with specific advice, which is based on clients' special request, such as formula painting, packing, etc

Q: 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

Q: When can I get the price?
A: We usually quote within 24 hours after getting your inquiry.