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Type | Down-Hole hammer | Hole Dia.(mm) | Description of Casing Pipe | Outer Flat Drill Pipe |
GZ89 | WC70 | Φ96 | Φ89 | Φ60(Φ50) |
GZ108 | WC85 | Φ120 | Φ108 | Φ73 |
GZ127 | WC110 | Φ138 | Φ127 | Φ7389 |
GZ140 | WC110 | Φ151 | Φ140 | Φ7689 |
GZ146 | WC110 | Φ158 | Φ146 | Φ7389 |
GZ168 | WC130 | Φ179 | Φ168 | Φ89 |
GZ178 | WC150 | Φ190 | Φ178 | Φ89114 |
Used with our down-hole hammer, it can drill through complicated formations in which drilling holes are easy to collapse.
Or produce according to your requirement!
Eccentric Drill Tools