DRILL BIT FOR IMPROVED TRANSPORT OF CUTTINGS

DRILL BIT FOR IMPROVED TRANSPORT OF CUTTINGS

A rock drill bit having a head provided at one end of an elongate shank. A plurality of fluid flushing passageways extend axially from an internal bore extending through the shank with at least one fluid flushing passageway having an exit end at the front face formed as an elongate slot having a len...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NORDBERG, ANDERS, HEMPH, Rasmus, KRAFT, Conny
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A rock drill bit having a head provided at one end of an elongate shank. A plurality of fluid flushing passageways extend axially from an internal bore extending through the shank with at least one fluid flushing passageway having an exit end at the front face formed as an elongate slot having a length greater than a width to facilitate the rearward transport of cut rock fragment.