casing spear fishing tools

Casing Spear Supplier

• www.casing-spear.com 

• Fishing tool casing releasing spear manufacturer in China,Buy low price casing pear fishing tools,please contact us to get products price list

• How Casing spear works？
  When salvaging: The outer diameter of the round slip is slightly larger than the inner diameter of the falling object in the free state of salvage. When the tool enters the fish cavity, the round slip is compressed to produce a certain external expansion force, so that the round slip is close to the inner wall of the falling object. As the mandrel moves upward and the pulling force gradually increases, the zigzag threads on the mandrel and the circular slips coincide with each other, and the circular slips generate radial force to make them bite the fish and realize salvage.
  

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