hole opener

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hole opener
Posting date : Aug 22, 2011
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72-
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Detailed Description
1.It's the ideal tool to drill rock socketed piles for brides,geological exploration, water conservancy, building, especailly for horizontal directional well drilling, Suitable for medium or poorly weathered hard rock formation, such as bouldery, granite, gneiss, sandstone, limestone, shale etc. 2. hydraulics is employed for cleaning settlements at the hole bottom; 3. The dual-pivoted cone is adopted; 4. An anti-wear mechanism is incorporated in the cone back; 5. Unique arrangement of cone bits; 6. Protection pads are fixed on the drilling body to improve stabilization of the drilling head, and extend its service life;

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