Drilling subs are very short pieces of drill pipe which are used to connect and switch in drills. They are important integral wireline core drilling parts of everyday drilling. Our products use the international standard material. Heat treatment and hardening treatment of the thread surface are adopted to keep the long service life of the products.
Drilling subs with foreign standard sizes are all available according to the client's requirements.
|S75/65 SA75/65 S95/65 SA95/65 S96/65|
|73/57 89/57 108/57 127/57|
|146/57 73/65 89/65 108/65|
|127/65 146/65 168/65 89/75|