Design Specifications
Die collar is a special fishing tool which can reversing from the outer wall of drill pipe,tubing and other tubular falling object, can be used for fishing cylindrical falling objects of no inner hole or inner hole is blocked.
接头螺纹 Connect | 接头外径 Sub O.D (mm) | 水眼 Hole (mm) |
NC26 | 86 | 44 |
NC31 | 105 | 50 |
NC38 | 121 | 54 |
NC46 | 152 | 70 |
NC50 | 168 | 70 |
5-1/2FH | 178 | 76 |
6-5/8REG | 203 | 76 |
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