Wireline Knuckle Jar 1.25" OD Downhole Alloy Steel Wireline Jar

The knuckle jar is an extended type of the knuckle joint, the knuckle jar is used to combine with running tools, and operated to transmit effective jarring forces up and down. The knuckle jar not only has the rotation and change function of the universal section, but also has the function of the jarring, which is usually applied in some workings where the tool length is limited and does not require shock due to the short overall length and the smaller shock force. The wireline knuckle jar works as a backup means of de-carding when entering precision test instruments.

Specification of wireline knuckle jar

Other wireline tools

About Techore Oil Tools

With the professional Research and Development (R&D) department and skilled engineers whom were committed to the design of downhole tools for more than ten years, Techcore Oil Tools equipped with advance equipment is specialized in manufacture the oil downhole tools and its related parts in high quality.

* Techcore insist on superior quality, strong packing & timely delivery.
* Techcore do the best to supply thoughtful and prompt after-sales service to guarantee for the customers' benefits
* Techcore supply the cost effect products with 12 months guarantee
* Techcore insist on the traceability of each Drill stem testing tools and related DST parts

Techcore oil tools is certified by ISO, all the manufacture is strictly conformed with ISO system including Quality Control Management, Environmental Management and Occupational Health & Safety Management. For each downhole tools and each parts, we make the trace-ability from the raw material till the products. And any TPI inspection are available with us from SGS/BV/ TUV /DNV etc..

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