Min. Order:
330 meters
Price:
USD 9.5
Place of origin:
China
Price Condition:
FOB Any
bit is 7 degree, if the user require other taperer butten bit, we can design it for you.
3.If the hole depth is deeper than 2.5m, please use the set of rods, firstly,using shorter drill rods, then the loner rods, which can improve the life of rods; For example,if you want to open a 5m depth hole, you should take 1m,2m,3m,5m, totally four pieces rods; If you want to open a 6m depth hole, you shou
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