QICHENG diamond core drill bits for hard rock with best price

1.Diamond drill bit features:

 (1)High effciency, long life and no breaking of segments. 

 (2)Sizes of adaptor for threaded bit: G1/2",1 1/4"-7. 

 (3)Applicable for drilling of brick wall,concrete, concrete with steel.

 (4)Stable function and performance when cutting the stone,metal,concerte,wall.
 (5)We have registered our own brand. Therefore we ensure the quality about the Diamond Core Drill Bits we produce.
 (6)We provide the superior and professional sale service. 
 (7)We can also manufacture Diamond Core Drill Bits according to customers' needs. 

 (8)Suitable for stone drilling Machine, Manual Handling drilling Machine.

 (9)Our products export  to Brazil, India, Australia, USA, Ukraine, Italy, Poland, Russia.etc.more than 20 different countries. In these overseas markets,our blades enjoy a good reputation,we get good feedbacks about their corresponding test  result, and also a  long lifespan. so, we are confident in our products quality

2.Detail specifications of diamond drill bit for stone:

3.Pictures of diamond drill bit for stone: