DTH DRILL BITS

For DTH down the hole drilling rigs

​Concave
This is the most familiar face style used in the market today.  The dish typeface gives excellent penetration in medium and hard rock formations while maintaining a straight hole.  This face has excellent air flushing characteristics.  Concave is the predominate face style for the majority of drilling conditions.

​Flat
The flat face bit, as the name implies, is flat across the bit front.  This bit is very aggressive in drilling applications and is suited best for tough rock and in hard rock with broken formations.  Used primarily in blast hole work, this bit tends to lead off in deep holes.  DRILL PANGOLIN flat face bits come with standard face slots to aid in keeping the cutting face clean.

​Convex
This face has been utilized in very hard drilling formations where the face of the bit tends to be prematurely worn away.  The convex style tends to keep the drilling face in tact longer by drilling with the two rows of buttons on the convex face.

​Kavex
This face is a combination of convex/concave.  It is recommended for abrasive formations in the hard rock and robust rock range where other bit faces wear quickly.  The kavex is designed to provide improved cleaning of cuttings thus reducing body wear.  The concave center helps to drill a straight hole

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