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ZRQ115B-DHD340 high wind pressure down-the-hole drill bit
ZRQ115B-DHD340 high wind pressure down-the-hole drill bit
 
 

ZRQ115B-DHD340 drill bit technical parameters

Model

Edge teeth

Middle tooth

Head structure

Number of exhaust holes

Number of splines

Weight kg

With impactor

ZRQ115B-DHD340

8-Φ14Q

6-Φ13Z

Convex surface

2

8

8.1

ZRC4A

ZRC4

DHD340

ZRQ115B-DHD340 drill bit features

 

ZRQ115B-DHD340 drill bit is a general purpose drill bit developed by our company according to the characteristics of domestic rock formations, and its side teeth are adopted

 

Eight 14mm alloys ensure the wear resistance and fracture resistance of the alloy. At the same time, the bulkhead adopts a double-step layout.

 

Effectively improve the gearing efficiency, the bit body adopts a special heat treatment process, which effectively reduces the damage such as breakage and chipping

 

Bad probability, the drill bit body and alloy life have been effectively matched, reflecting the characteristics of high life and high efficiency

 

Point.

 

 
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