WELCOME TO HANJIN DRILLING CO., LTD. ::::::::::

■ Suitable for drilling in all formations.
■ Cone shaped depression in the face has centering effect for
straighter holes.
■ Well suited for soft to medium formations.

■ face slots help eliminate bit plugging in softer zones.
■ More carbide to surface contact for for better rock fracture.
■ Well suited for medium to hard formations.

■ Fast penetration rates.
■ Face design allows for increased body support for gage carbide.
■ Well suited for hard and abrasive formations