The Sliding Block Spear is an internal catch fishing tool, which can be used both to catch drill pipes, tubings, washover pipes, liners, packers, water allocators and reverse stuck fishes or used with others tools. (Such as bumper jars, back off sub etc.). The block spears are furnished in two types: releasing sliding block spear and releasing two blocks spear.
| Item | Type | O.D. mm | Connection API | Regulate and specification | |
| Fishing I.D. mm | Tools length Divide step mm | ||||
| 1 | HLM-D(S)48 | 73 | 2 3/8TBG | 38 | 550,650,750,800,1000,1200,1500,1800,2000 |
| 2 | HLM-D(S)60 | 86 | NC26 | 42~53.8 | |
| 3 | HLM-D(S)73 | 105 | NC31 | 52.6~64 | |
| 4 | HLM-D(S)89 | 105 | NC31 | 64.1~77.9 | |
| 5 | HLM-D(S)102 | 105 | NC31 | 77.6~92.1 | |
| 6 | HLM-D(S)114 | 121 | NC38 | 90~102.5 | |
| 7 | HLM-D(S)127 | 121 | NC38 | 103~117.8 | |
| 8 | HLM-D(S)140 | 135 | NC38 | 115.7~129.3 | |
| 9 | HLM-D(S)168 | 165 | NC38 | 138.3~156.3 | |
| 10 | HLM-D(S)178 | 175 | NC50 | 152.3~168.1 | |
| *D:Releasing sliding block spear S:Releasing two blocks spear | |||||
The Sliding Block Spear is an internal catch fishing tool, which can be used both to catch drill pipes, tubings, washover pipes, liners, packers, water allocators and reverse stuck fishes or used with others tools. (Such as bumper jars, back off sub etc.). The block spears are furnished in two types: releasing sliding block spear and releasing two blocks spear.
| Item | Type | O.D. mm | Connection API | Regulate and specification | |
| Fishing I.D. mm | Tools length Divide step mm | ||||
| 1 | HLM-D(S)48 | 73 | 2 3/8TBG | 38 | 550,650,750,800,1000,1200,1500,1800,2000 |
| 2 | HLM-D(S)60 | 86 | NC26 | 42~53.8 | |
| 3 | HLM-D(S)73 | 105 | NC31 | 52.6~64 | |
| 4 | HLM-D(S)89 | 105 | NC31 | 64.1~77.9 | |
| 5 | HLM-D(S)102 | 105 | NC31 | 77.6~92.1 | |
| 6 | HLM-D(S)114 | 121 | NC38 | 90~102.5 | |
| 7 | HLM-D(S)127 | 121 | NC38 | 103~117.8 | |
| 8 | HLM-D(S)140 | 135 | NC38 | 115.7~129.3 | |
| 9 | HLM-D(S)168 | 165 | NC38 | 138.3~156.3 | |
| 10 | HLM-D(S)178 | 175 | NC50 | 152.3~168.1 | |
| *D:Releasing sliding block spear S:Releasing two blocks spear | |||||