Integral spiral stabilizer: three and four spiral stabilizer consist of bottom and stem type, the anti-wear materials on the surface usually include Carbide Mosaic column on the surface, Composite inlay diamond on the surface, hardfacing electrode, Low temperature brazing of carbide etc.
Specification:
Bit Dia. (in) |
OD |
Dia.of |
ID |
Length |
Connections of both ends | |||
|
Stem type |
Bottom type | |||||||
|
Top end |
Bottom end |
Top end |
Bottom end | |||||
|
6 |
152.2 |
121 |
51 |
1200 |
NC38 |
3 1/2 REG | ||
|
6 1/4 |
158.7 | |||||||
|
6 1/2 |
165.1 | |||||||
|
7 1/2 |
190.5 |
159 |
57 |
1600 |
NC46 |
4 1/2 REG | ||
|
7 7/8 |
200 | |||||||
|
8 3/8 |
212.7 |
159 |
71 |
1600 |
NC46 | |||
|
8 1/2 |
215.2 |
159 | ||||||
|
8 3/4 |
222.2 | |||||||
|
9 1/2 |
241.3 |
178 |
1600 |
NC50 |
NC50 |
NC50 | ||
|
9 5/8 |
244.5 |
1800 |
6 5/8 REG | |||||
|
9 7/8 |
250.8 | |||||||
|
12 1/4 |
311.2 |
203 |
76 |
1800 |
NC56 |
NC56 |
NC56 |
6 5/8 REG |
|
16 |
406 |
229 |
2000 |
NC61 |
NC61 |
NC61 |
NC61 | |
|
17 1/2 |
444.5 | |||||||
|
24 |
609.6 | |||||||
|
26 |
660.4 | |||||||
|
28 |
711.2 | |||||||