Brief Introductions of Drilling Subs
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.
Specifications of Drilling Subs:
| Drilling Subs(mm) |
| 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 |
