The SSJ Adapter provides a method of downward jarring to shear the tool without contacting the core of the sub surface control being manipulated. The SSJ is used mainly for running type X selective test tools. The SSJ is attached to tool string and ran to desired depth setting the test tool in the nipple profile. This allows the option of remaining latched to fish neck at top of test tool equalizing stem or shearing to leave the test tool set in the nipple profile.
