OD70mm welded thinner applications stone drilling diamond core bit

$17.50 / Piece | 50 Pieces (Min. Order)
- + Pieces available
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Shipping fee:
Depends on the order quantity.
Lead Time:
30 day(s) after payment received
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Quick Details
Place of Origin:
Jiangsu, China
Brand Name:
Johnson tools
Model Number:
Core Drill Bit, Core Drill Bit
Masonry Drilling, Masonry Drilling
HS code:
Plastic or white box.
3/8" or 1/2" shaft
segment type:
Flast or turbo type
Fast drilling no chipping

Packaging & Delivery

Selling Units:
Single item
Single package size: 
45X45X30 cm
Single gross weight:
1.5 kg
Package Type:
Each Core drill bits are packed in plastic box, then according to the size, normal put in an export standard carton, gross weight per carton is limited within 15-20kg.
Picture Example:
Lead Time :
Quantity(Piece) 1 - 100 >100
Est. Time(days) 30 To be negotiated


OD70mm welded thinner applications stone drilling diamond core bit

diamond drill bit

Product Description


Established in 2000year == Factroy==Quality Control ==Competitive price==OEM==Short delivery time


1.Description of OD70mm Diamond Core Bit for Stone
1. Core drilling thinner applications of stone, including granite, marble, sandstone, limestone, and so on.
2. Premium grade core bits that deliver fast drilling speed and extend product life.
3. Use application with core drilling machines and hand drills.
4. Production strictly according to customer requirements.
5. Size could be customized.


2. Features of OD70mm Diamond Core Bit for Stone
1. Usage: With water application
2. Processing Technology: silver welded
3. Applications: Stone drilling
4. Segment type: Flat segment
5. Delivery time: Around 20-30days

Middle Diamond core bit for stone
Item No.DiameterTeeth No.Segment DimensionTotal LengthConnection Type
BGB3030Crown83833/8” Shaft
BGB3232Crown83833/8” Shaft
BGB3535Crown83833/8” Shaft
BGB3838483833/8” Shaft
BGB4040483833/8” Shaft
BGB4242583833/8” Shaft
BGB4545583833/8” Shaft
BGB5151683831/2” Shaft
BGB5555683831/2” Shaft
BGB6060783831/2” Shaft
BGB6565783831/2” Shaft
BGB7070783831/2” Shaft







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.

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