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Core barrel double shell

Core barrel double shells specially are used drilling for deep, large and toughest pile.Inner core barrel drill first and work as a centerizer .The outer core barrel drill and reaming.Ensuring the verticality of the pile.

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Model:
Dia 800~2800
Brand:
BAORUI

Product Description

Item:Double shell core barrel

Feacture:Drilling and coring first by the inner ring and reaming by the outer ring.High efficiency for large , deep and toughest pile.

Application strata:Gravel, boulder,and medium weathered rock.

Type:Bullet teeth or roller bit

Customized service: customized like φ850mm, φ1120mm.

Kelly box：200mm or 250mm

Core barrel double shell core barrel with double shell (7)

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