Hydraulic/Mechanical Drilling Jar

The Wenzel Downhole Tools Hydraulic/Mechanical Drilling Jar (HMJ) is a double acting jar, designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction.  The HMJ incorporates a latch mechanism to keep the jar locked in the neutral position and eliminate unexpected jarring while tripping or racking on the derrick.

Learn more

For tool specifications and further details, contact us via our form below.