Wet Diamond Core Drill Bits For Stone 30mm ~ 70mm Outer diameter

Basic Information
Place of Origin: CHINA
Certification: SGS, GB
Model Number: BGB
Minimum Order Quantity: 50pcs
Price: Negotiate
Packaging Details: Plastic box, Paper box
Delivery Time: 25-55days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000pcs per month
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Silver Welded Diamond Drill Bit For Stone With 50mm Working Length , Middle Size


Diamond core bits which adopt excellent diamond segment, steel tube, usd on stone drilling, such as granite, marble, sandstone, limestone, etc.  Made for countertop, kitchen or any other stone fabrication applications.



Outer diameter: 30mm~70mm.

Shaft: 3/8” shaft, 1/2” shaft, M14 thread or 5/8“-11 thread

Working length: 50mm (2 inch).

Segment Height: 8mm.

Suitable: wet drilling.

Other style and size can be ordered.


Detais spec.:


Diameter Teeth No. Segment Dimension Working Length
MM Height Thickness
30 Crown 8 3.0 50
32 Crown 8 3.0 50
35 Crown 8 3.0 50
38 4 8 3.0 50
40 4 8 3.0 50
42 5 8 3.0 50
45 5 8 3.0 50
51 6 8 3.0 50
55 6 8 3.0 50
60 7 8 3.0 50
65 7 8 3.0 50
70 7 8 3.0 50





Wet Diamond Core Drill Bits For Stone  30mm ~ 70mm Outer diameter 



1) Can you company accept OEM?
We accept OEM orders for all products, as well as buyers' logos.

2) Quality Control?
Each product is strictly checked by of QC dept. We have completed file data in our computer which listed the whole processing of each order. Once the quality of sample order confirmed by clients, we will keep the same formula in the following orders. 15years producing experience, we will bring the most suitable products based on different markets.

3) Shipping Methods?
Air Freight when gross weight is above 45kg and less than 500kg. Fast delivery
Sea Freight when the gross weight is above 100kg. Cheaper freight charge.
Courier (TNT, DHL, FedEx, Ups, etc). Small try order, door to door service.
4) Minimum Order and Delivery?
Minimum order: negotiable.
Delivery: 15 to 45 days. Based on the quantity per order.


Wet Diamond Core Drill Bits For Stone  30mm ~ 70mm Outer diameter

Contact Details

WhatsApp : 8618936085316