1. Five knife-wing, medium-deep parabolic crown road, asymmetric wing blade, curving tooth,, spiral path rules, regulations plus insert cutting edge gear diameter, reaming drill bit inverted function, optimal design of bottom flow field, there conducive to debris migration. 
 2. High abrasion tooth cutting the special requirements of high wear PDC films, significantly lower cutting resistance, extended drill bit life. 
 3. Anti-swing design balance of power, anti-swing design, reduce the radial vibration during drilling bit, drill a well oriented. 

 Drill bit adapted to soft to medium hard formation drilling directional wells