Description Qyz type hydraulic drilling jar Qyz hydraulic drilling jar integrates upward jarring with downward jarring, it is a hydraulic type drilling jar.Which is used in all kirds of well conditicn, it generates up and down jarring force by lifting and releasing drill stems when the drilling tools were stuck and make sure drilling operation can go smoothly. This type drilling jar has some advantages like easy operation stable property safety and reliability maintenance etc. We produce h2s resistance jars, which adopt high quality import sulfur-resistance material. Modelod Mm(inch)id Mm(inch)open full Stroke Mminchconnection Apimax. Working Load Knmax. Tensile Load Knmax. Working Torque Km Qyz121121(4-3/4)57(2-1/4)635(25)nc38350136418 Qyz165165(6-1/2)69(2-23/32)635(25)nc50770266855 Qyz203203(8)76(3)635(25)6 5/8reg13004700106 Packaging & delivery Packing :according to customer requirementsminimum order : 1 piecessupply ability : 600 sets/year