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BG_DRIzubehoer


Rock drilling technique

Centralizer


The CENTRALIZER is a guiding pipe which is attached to the front of the Hole Opener. Its is chosen according to the diameter of the bore and centers the Hole Opener inside the bore with the next upsizing step.

It guarantees that the Hole Opener is pulled straight along the bore hole bottom and the cutters are strained evenly.


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