Hotline:
+86 (0)731 84254020

Drag Bits Penetrate soft formation quickly such as stiff,clay and mudstone. Usually they are used for construction and site investigation.
It has two types, Step type and Chevron type.
Size | Diameter | Thread Connection |
2 7/8" | 2 7/8" | 2 3/8" API REG |
3 1/2" | 3 1/2" | 2 3/8" API REG |
3 7/8" | 3 7/8" | 2 3/8" API REG |
4" | 4" | 2 3/8" API REG |
4 3/4" | 4 3/4" | 2 3/8" API REG |
5" | 5" | 2 3/8" API REG |
5 1/2" | 5 1/2" | 3 1/2" API REG |
6" | 6" | 3 1/2" API REG |
6 1/2" | 6 1/2" | 3 1/2" API REG |
7" | 7" | 3 1/2" API REG |
7 1/2" | 7 1/2" | 3 1/2" API REG |
8" | 8" | 3 1/2" API REG |
8 1/2" | 8 1/2" | 3 1/2" API REG |
9" | 9" | 3 1/2" API REG |
9 1/2" | 9 1/2" | 3 1/2" API REG |
10" | 10" | 3 1/2" API REG |
10 1/2" | 10 1/2" | 3 1/2" API REG |
12" | 12" | 4 1/2" API REG |
15" | 15" | 4 1/2" API REG |
17" | 17" | 4 1/2" API REG |
Other sizes are also available as per request |