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  • 3.5 inch drill bit
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  • DHD, QL, SD classic impactor series
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  • C-type high-speed impactor series
  • D-type energy-saving impactor series
  • CIR low wind pressure impactor series
  • Eccentric tube drilling tool series
  • Concentric with tube drilling tool series
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  • Positive cycle once to form a hole
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  • Reverse circulation once to form a hole
  • Reverse circulation secondary reaming type
    •        CONTACT US
    Shandong zhongrui construction machinery co. LTD
    Address : 3701 Zhuangjian Road, Kuiwen Economic Development Zone, Weifang City, Shandong Province, China
    Zip code：261041
    Phone：86-536-2288189　
    Manager li：15005366588
    URL：www.zrjx.cn
    Email：15005366588@163.com 
    ZRQ110A-CIR90 down-the-hole drill bit
    ZRQ110A-CIR90 down-the-hole drill bit
     
     

    ZRQ110A-CIR90 series drill bit technical parameters

    Model

    Edge teeth

    Middle tooth

    Head structure

    Number of exhaust holes

    Number of splines

    Weight kg

    With impactor

    ZRQ110-A

    6-Φ14Z

    4-Φ12Z

    Convex surface

    3

    6

    4.8

    ZRC3.5-CIR90

    ZRC3.5A-CIR90

    3-Φ13Z

     

    Model features: ZRQ110-A drill bit is a conventional low wind pressure 110 drill bit, which is matched with ZRC3.5-CIR90,

     

    ZRC3.5A-CIR90, CIR90 and other impactors.

     

     
     

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    Next: ZRQ100-CIR90 low wind pressure down-the-hole drill bit

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    Shandong zhongrui construction machinery co. LTD  鲁ICP备10009119号-3

    Address : 3701 Zhuangjian Road, Kuiwen Economic Development Zone, Weifang City, Shandong Province, China

    Zip code：261041    Phone：86-536-2288189    Manager li：15005366588

    Email：15005366588@163.com    Technical support：企化网络


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