Welcome, GuestSign InSign Up
Position - - / - - Detail

Back-Off Sub

Product Details

Back-Off Sub
The back-off sub also named back-off spear. There is usually a left hand thread for tool joint at the upper part of the body, while the expansion sleeve has right hand thread. The guide cone at the lower part can make the expansion sleeve of the sub conveniently screw the fish connection. Raising the drilling tool, the expansion sleeve can hold the fish firmly, then reversing.

Contact Information

Contact Personbrigette
Telephone+86 29 88368846
Fax Number
Post Code
AddressRoom 10401, Building 31, Tangyuan Xiaoqu,No.69 Dianzi Zhengjie, Yanta District, Xi'an, China 710065
About Us - Contact Us - Privacy Policy - Daily Updates - Report Abuse