DataSet	Hole_ID	Depth_From	Depth_To	DH_Type	Hole_Diameter	Comments
CENTRALMTREAD	SBD01	0	3	DD	HW	Tricone
CENTRALMTREAD	SBD01	3	20.8	DD	NQ	
CENTRALMTREAD	SBD01	20.8	221	DD	BQ