Vigor Drilling is one of pioneer Downhole Drilling Stabilizers manufacturers in Oil industry. Our Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar are designed for use during drilling operations to apply an intensified force either up or down against a stuck portion of the drill string, it is an ideal tool for directional well and deep well drilling.Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar is used to free the stuck tools and make a jarring. It integrates the up jar and down jar and can deal with the stuck accident happened in shortest time during the drilling. It is an ideal jarring tool for the directional well and deep well.Operators can make an adjustment for lifting and lowering drill tool (without the adjustment of torque and outside) to get the releasing up jar or down jar force when used the Drilling Jar downhole. Moreover, the operator can adjust the jarring force from small to maximal force required. It can be broadly used for drilling, coring, fishing and workover because of its easy operation, convenience and high reliability.Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar are widely used in America and Middle East area. It helps our customer to reduce the working time while there is a stuck during drilling operation, quality is recognized by users. It also used in Shale Gas exploitation by some of our partners due to the reliable performance and economical cost. We also provide our suggestion and solution when customer has problem on operation, maintain or testing etc.For Hydraulic Shock Tool, it can absorb or reduce axial vibration and thrust load of the drilling.Hydraulic Shock Tool also has good results for prolonging the service life of the bit and protecting the drilling tools and the surface equipment. For more information of Hydraulic Shock Tool, please email us.If you are looking for competitive, high quality and fast delivery oilfield drilling jar in stock, or if you are planning to buy drilling jar API from one of the leading hydraulic drilling jar, machenical drilling jar, double acting hydraulic-mechanical drilling jar, 8"drilling jar spare parts, mandrel sub for drilling jar manufacturers and suppliers China, please feel free to contact VIGOR.