Welcome to the official website of KUNHAO INC.
Telephone: +626-636-5653 kunhaoinc@gmail.com 
| Available Sizes | X-HE Series | ROCK FEATURES | ROCK TYPE | Mohs Hardness |
|
Wireline Series: AWL,BWL,NWL,HWL,PWL,NWL-2,NWL-3,NWL-TT,HWL-3,HWL-TT,PWL-3,PWL -TT Others: NMLC,HMLC,ATW,BTW,NTW,HTW |
X-HE3 | Soft | Sandstone,Sandy Shale,Limestone,Sandy Limestone,Conglomerates,Peridotite,Serpentine,Weathered Granite,Dolomite | 3.0-5.5 |
| X-HE5 | Soft to Medium Hard | Abrasive Coarse-Grained Granite, Basalt,Pegmatite,Skarns,Rhyolite | 4.0-6.0 | |
| X-HE7 | Medium to Hard | granite,Pegmatite,Skarns,Rhyolite,Jasperite,Glassy Quartz,Basalt | 5.0-6.5 | |
| X-HE9 | Hard to Very Hard | Granite,Syenite,Quartz,Diorite,Gneiss,Silicified Volcanics,Diabase,Gabbro,Quartz,Chert,Basalt | 6.0-7.5 | |
| X-HE11 | Hard to Extremely Hard | Basalt, Felsic,Volcanic Rock,Diorite,Silicified Volcanics,Quartz,Quartz,Chert | 6.5-7.5 | |
| X-HE13 | Hardest | Calcite,Quartzite,Taconite | 7.0-8.0 |
- How deep is the project?
- What is the rock?
- Is it hard, soft or complex rock?
- Is the rock very complete, semi-broken or broken?
- How is the abrasiveness of rock?
- Have you use any other brand before? what is the brand(optional)?
- How is the performance previously?
such as:
→ drilling speed?
→ meters downhole?
→ drill bit working life?
Above questions will help us be more familar with your ground situation, meantime, more accurate and appropriate bit will be provided to you.
SOFT ROCK FORMATIONS
◆ LOW RPM's
◆ Large diamonds/cutters
◆ Large waterways for better flushing and higher GPM flow rates
◆ Hard matrix for longer bit life
HARD ROCK FORMATIONS
◆ High RPM's
◆ Small diamonds/cutters
◆ Small waterways
◆ Soft matrix to expose more cutting elements
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