成人午夜精品无码区久久青龙-成人午夜精品无码区久久樱花影视-成人午夜精品无码区毛片四季视频-成人午夜精品无码区全集观看-成人午夜精品无码试看120秒-成人午夜精品无码网站

ZRQ165-DHD360 drill bit technical parameters

Model

Edge teeth

Middle tooth

Head structure

Number of exhaust holes

Number of splines

Weight kg

With impactor

ZRQ165-DHD360

8-Φ16Q

11-Φ16Q

Plane

2

8

24.7

ZRC6

ZRC6A

DHD360

COP64

ZRQ165-DHD360 drill bit features

ZRQ165-DHD360 drill bit is a universal drill bit developed by our company according to the characteristics of domestic rock formations. Its side teeth adopt 8

A 16mm alloy ensures the wear resistance and fracture resistance of the alloy. At the same time, the bit body adopts a special heat treatment process

Technology, effectively reducing the probability of damage such as breakage, chipping, etc., so that the bit body and the alloy life can be effectively matched,

Embodied the characteristics of long life and high efficiency.