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ZRQ216-DHD380 high wind pressure down-the-hole drill bit
ZRQ216-DHD380 high wind pressure down-the-hole drill bit
 
 

ZRQ216-DHD380 drill bit technical parameters

Model

Edge teeth

Middle tooth

Head structure

Number of exhaust holes

Number of splines

Weight kg

With impactor

ZRQ216-DHD380

10-Φ18Q

6-Φ16Q

Concave surface

2

10

50.4

ZRC8A

ZRC8

DHD380

COP84

8-Φ18Q

ZRQ216-DHD380 drill bit features

 

ZRQ216-DHD380 drill bit is a universal drill bit developed by our company according to the characteristics of domestic rock formations, and its side teeth are adopted

 

10 18mm alloys ensure the wear resistance and fracture resistance of the alloy. At the same time, the large head adopts a concave layout.

 

Effectively ensures the straightness of the drill bit during the drilling process, and the drill body adopts a special heat treatment process, which effectively reduces its

 

The probability of damage such as fracture and block collapse effectively matches the life of the bit body and the alloy, reflecting the high lifespan

 

And the characteristics of high efficiency.

 

 
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