Small spiral rib drill pipe
It is used for dr ling pipes of all kinds of hardness and all kinds of geology， with smooth driing rod body， spiral rib outside cylindrical surface， and helpful for drl pipe drainage function.
Speci ications：The frame drill pipe belongs to the subdivision of geological spiral drill pipe, and its specific features are: Taking geological drill pipe as the rod body, it is welded by prestressed winding plane spiral blade; According to the type of spiral blade, it can be divided into single helix, double helix and triple helix. Also known as spiral drill pipe, small spiral drill pipe, single spiral drill pipe, petroleum drill pipe, pneumatic drill pipe, etc.
Ф50mm/Ф63.5mm，Ф63.5mm/Ф73mm Ф63.5mm/Ф89mm，Ф73mm/89mm
Product use：mainly used in mining tunnel driing driing construction.
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