Replaceable sleeve stabilizer consists of mandrel and sleeve. The function is the same as spiral integral blade stabilizer. It can suit to different hole size and increase working life by changing the different size sleeve. The sleeve is threaded on the mandrel, so the sleeve can be fasten to the mandrel tightly and changed easily.
Working outside diameter OD mm（inch） | Salvage diameter OD mm（inch） | Upper end | Lower end | Hole ID mm（inch） | Neck length mm（inch） | Total length mm（inch） | Remarks |
149.2 （5 7/8） | 120.7 (4-3/4) | NC38 | NC38 | 50.8(2) | 559(22) | 1372 (54) | Drill string type |
31/2REG | Near bit type | ||||||
152 （6） | 120.7 (4-3/4) | NC38 | NC38 | 50.8(2) | 559(22) | 1372 (54) | Drill string type |
31/2REG | Near bit type | ||||||
215.9（8-1/2） | 165 (6-1/2) | NC50 | NC50 | 71.4 (2-13/16) | 686（27） | 1676（66） | Drill string type |
41/2REG | Near bit type | ||||||
311.15（12-1/4） | 203(8) | 6-5/8 REG | 6-5/8 REG | 71.4 (2-13/16) | 610（24） | 1550（61） | Drill string type |
Near bit type | |||||||
444.5（17-1/2） | 229(9) | 7-5/8 REG | 7-5/8 REG | 76.5(3) | 686（27） | 1702（67） | Drill string type |
Near bit type | |||||||
660.4 (26) | 241.3 (9 1/2) | 7-5/8 REG | 7-5/8 REG | 76.5(3) | 660（26） | 1930（76） | Drill string type |
Near bit type | |||||||
711.2（28） | 241.3 (9 1/2) | 7-5/8 REG | 7-5/8 REG | 76.5(3) | 686（27） | 1981（78） | Drill string type |
Near bit type |
