The releasing and circulating overshot is the special external fishing tool used for fishing drill collar, drill pipe, oil tube and other fishes in drilling and work over operation. OD size is from 31/2"to 16".Type OD Max. catch size (mm) Thread Type OD Max.Catch size(mm) Thread LT-T89 89 60.3 47.6 NC26 LT-T194 194 159 141 NC50 LT-T92 92 73 63.5 NC26 LT-T200 200 159 141 NC50 LT-T95 95 76.2 66.6 NC26 LT-206 206 178 163 NC50 LT-T102 102 73 60.3 NC26 LT-T 206 206 168 152 NC50 LT-T105 105 85.2 73 NC31 LT-T219 219 178 159 NC50 LT-T114 114 89 758 NC31 LT-T232 232 203 187 NC50 LT-T117 117 89 78 NC31 LT-T244 244 206 184 65/8REG LT-T127 127 95 80 NC38 LT-T260. 260 219 200 65/8REG LT-T143 143 120.6 102 NC38 LT-270 270 228.6 209.6 65/8REG LT-T152 152 128 111 NC38 LT-T273 273 241.30 216 65/8REG LT-T168 168 127 114 NC50 LT-T286 286 244.5 225.4 65/8REG LT-T168B 168 139.7 120.6 NC50 LT-T298 298 257 238.1 65/8REG LT-T181 181 146 127 NC50 LT-T340 340 286 260 65/8REG
