API 7ISOoil drill pipe

Heavy weight drill pipes we produce are integral. Materials are from AISI 4145H modified drill collar material. Hard-banding on both end and center of the body increases abrasion resistance and extend service life. Heavy weight drill pipe is developed to provide a gradual transition from drill collars to the relatively light weight drill pipe. It can reduce fatigue damage to the drill pipes.Heavy weight drill pipe is intended primarily for directional drilling. It improves directional control by reducing torque and drag. Etc Different sizes of Heavy weight drill pipe is 3 1/2", 4", 4 1/2", 5", 5 1/2"

Appliable        water well, oil field, construction, geothermal, directional boring
Formation        sticky,soft,medium hard,hard formation
Bearing          rubber seal or metal seal
Paking           wooden box,steel box,or as your requirements
Payment Term     T/T,L/C
MOQ              1 Piece
Supply Ability   5000 Pieces/month
Delievery Time   within 15 days

we also import junk tricone bits and pdc bits