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Home - Products - Stone Diamond Core Drill Bits - Vacuum Brazed Dry Use Granite Diamond Core Drill Bits


Vacuum Brazed Dry Use Granite Diamond Core Drill Bits

Buy cheap diamond core drill bits from Chinese factory


This vacuum brazed dry use diamond granite core drill bits are designed for drilling granite and hard stones. It's vacuum brazed barrel can effectivly protect the segment and extend its lifespan. The turbo core bit segments can remove the chipping and enhance the drilling efficiency. It's very popular in American market.


These high quality dry use granite core drill bits are engineered for exceptional footage and fast/aggressive drilling characteristics. We adopt the industrial grade diamond powder and Cobalt powder to produce our diamond core bits, so our diamond core bits have a stable drilling performance and superior lifespan. High diamond content yields excellent life and drilling efficiency through heavily reinforced concrete, marble, granite, refractory brick and other hard materials. We use the grade A quality steel tube to ensure the drill bits run precisely.
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Diameter (mm)

Working Length(mm)

Segment Height (mm)

Thread

Φ20

60

10

M14, 5/8"-11, 1/2 Gas,etc.

Φ25

60

10

Φ30

60

10

Φ35

60

10

 

 

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