Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
To survive with high quality,to develop with non-stop innovation,to repute with thoughtful service,to brand with great sincerity
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SD5-140mm Bit For Hole Blasting Drilling
| Matched hammer diameter(inch) | Bit diameter | Air Holes | Gauge | Front | Weight/KG | Bit shank | |
| mm | inch | (Qty.×Dia.) | (Qty.×Dia.) | ||||
| 5” | 140 | 5 1/2 | 2 | 7*18 | 7*14 | 15.5 | DHD350/SD5/QL50 /Mission50 |
Company introduction:
Changsha Tianhe Drilling Tools and Machinery Co., Ltd.,which located in Hanpu Scientific and Educational Park, Yuelu section,Changsha city, founded in 2002, is a plant and professional geotechnical drilling factory specializing in the production, management, research, and sales of drilling tools. With more than 200 skilled machining workers, 80 specialists who have the high and middle class technical titles,20 research and development specialists who have over twenty years of experience in DTH drilling tools, the company shows the great advantage in design and research. It can provide the integrated solutions to the drilling tools users all over the world.
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