«Hevi-Hitter»™ Drilling Jars

«Hevi-Hitter»™ hydromechanical drilling jars are cost effective insurance for many drilling programs. With a properly placed and operated drilling jar, many stuck drill strings can be freed right away and therefore eliminate expensive fishing operations.


  • Mechanical latch eliminates the need to open the jar before running in the hole and effectively eliminates unexpected firing while tripping in and out of the hole.
  • Adjustable latch mechanism allows to adjust the release impact force in the service center for different drilling conditions.
  • Bidirectional - deliver impacts in upward and downward directions.
  • The reliable splined connection transmits torque during rotary drilling.