Drilling Accessories Kelly bar spring and lower plate

Introduced the use of the Kelly bar spring 

The rotary drill pipe damping spring is mainly applied to the drill pipe square head, which can be used to cushion the pressure during drilling. The use of quality spring steel, advanced technology, long service life and higher construction safety coefficient.

Size:φ377,φ440,φ406,φ470,φ508,Applicable to different types of rotary drill pipe

Introduced the use of the Kelly bar lower plate

Name:Kelly bar lower plate

Product characteristics: the quality of the products is more stable and wear-resistant.

Size:φ377,φ440,φ406,φ470,φ508,Applicable to different types of rotary drill pipe

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