SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION
  • Back Off Sub

Back Off Sub

Back off sub is also called back off spear. It can replace the taper tap, fishing or back off when dealing with sticking. If the fish is stuck or cannot be back off, it can release from the back off sub, and then trip the drilling tool.


Technical Specification of Back Off Sub

Model

OD

ID

OAL

Connection

mm (inch)

mm (inch)

mm (ft)

ZDK105

105 (4-1/8)

15 (19/32)

580(1.9)

NC31LHBoxxNC31 Pin

ZDK121

121 (4-3/4)

22 (55/64)

628 (2.1)

NC38LH Box x NC38 Pin

ZDK159

159 (6-1/4)

28 (1-7/64)

690 (2.3)

NC46LH Box * NC46 Pin

ZDK165

165 (6-1/2)

28 (1-7/64)

690 (2.3)

NC50LH Box x NC50 Pin

ZDK168

168 (6-5/8)

28 (1-7/64)

690 (2.3)

NC50LH Box * NC50 Pin

ZDK178

178 (7)

32 (1-1/4)

700 (2.3)

5-1/2FH LH Box x 5-1/2FH Pin

ZDK203

203 (8)

35(1-3/8)

723 (2.4)

6-5/8REGLH Box * 6-5/8REG Pin


PRODUCT
Contact Us
  •                   susan@saigaogroup.com
    Fax:

    0531-69959201

    We Chat:

    lqg18653457231

    WhatsApp:

    +86-18653457231

    Add:

    No 12111,Jingshi Road, Lixia District, Jinan City, Shandong Province. P.R. China

Why Choose Us

Why Choose Us
  • AFTER-SALE AND SERVICE
    AFTER-SALE AND SERVICE

    Professional customer service team, professional after-sale services create a comprehensive high-quality, advanced technology, reliable products, which gives you a strong sense of security.

  • PROFESSIONAL
    PROFESSIONAL

    Professionals, professional skills and precision equipments insure that we can provide you with professional product customization service.

  • QUALITY
    QUALITY

    The best quality products, strict quality control system and good reputations established Saigao product's irreplaceable place.

  • INNOVATION
    INNOVATION

    Superb technical team with continuous technological innovation, closely follow the market's trend help you to create the highest performance products. 

THANK YOU FOR YOUR ATTENTION ON SAIGAO
Fill in and send the form to let us know your needs. We will get back with you ASAP.
Leave a Message