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DTH Hole Opener Bit

Diameter range is 5 inch to 32 inch.
 
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Product Description

SOLLROC Hole Opener bits are made of high quality steel and carbide. Diameter range is 5 inch to 32 inch. Shank available are SD, QL, DHD, COP, Mission, NUMA, etc


The hole opener bit have optional feature such as polycrystalline diamond inserts, wear protection buttons, skirt angle, flushing hole configuration, insert size and pilot length for varis rock formations and drilling conditions.


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+86 731- 85551632
No.55 Jiucaiyuan, Wenyi road, Furong District, 410001, Changsha, Hunan, China

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