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Drilling bits Drilling bits

Drilling bits

  • wet drilling
  • Customized
  • for granite
  • Product description: Good sharpness High effciency Reasonable price

Product Description

High efficiency, No-chipping, Long lifespan.

For Drilling Stone, Tile, Ceramic, Concrete Porcelain, Anchor Holes... ...

Selectable adaptor sizes: Dia 6/8/10mm shank, M14 thread, 5/8’’-11 threads etc.

Reference Dimensions:

*6.0mm Diameter

Overall length: 55mm

Shank: 5.3mm

Approx. Inner core diameter: 4.0mm

*8.0mm Diameter

Overall length: 55mm

Shank: 6.0mm

Approx. Inner core diameter: 6.0mm

*10mm - 60mm Diameter

Overall length from 45mm

Shank: 10mm

Approx. Inner core diameters = Outer diameter size minus approx. 3.0mm (i.e Inner core diameter of 10mm diamond core drill = 7.0mm) your requirement.

Products Show

Our Company

Established in 2001, we are manufacturer and trader specialized in the research, development and production of diamond tools.
We are located in Stone City Of China-Nanan Shuitou, with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

Packing & Delivery

Packing Details :

(1)Carton packaging.
(2)According to customer's requirements.
(3) 5 days preparation.


Q: Are you a factory or trading company?
A: We are factory.
Q: How can I visit your factory?
A: Our factory located in Stone City Of China-Nanan Shuitou, Fujian Province, China. You can fly to Xiamen International Air Port or Jinjiang Air Port, and we will you pick you up. Welcome you to visit our factory.
Q: How is your quality?
A: We have a very seriously control system(ISO 9001 and SGS product quality control) and 100% QC inspection Before Shipment.
Q: What we should do if your products can not run well?
A: Please don't worry we will solve this problem with yourside. Give us detailed report. Analyze the reason. We will try our best to find a way to solve the problem. If it's our problem and not possible to solve then we will give replacement.
Q: Do you have different quality for different kind of stone?
A: Yes, according hardness of stone and stone’s feature, we have different typology respectively.
Q: If we need technical support, can you offer us?
A: Yes, we have an experienced team, offering our customers additional benefits with specific advice, by our product managerment staff, engineers and technicians.

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