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TOUGH LOCK™ Conversion Series for Tweco-Style Guns
Add our TOUGH LOCK Consumable System, durable nozzle and our gooseneck insulator to your Tweco-style MIG torch:
| Tweco Style MIG Guns | Tweco Style Standard Conductor Tubes | TOUGH LOCK™ Retaining Head | Tregaskiss™ Gooseneck Insulator | Tregaskiss Adaptor |
| Tweco #3 | 63J-60 | 404-20 | 402-14 | -- |
| Tweco #4 | 64J-60 | 404-20 | 402-14 | -- |
| Spray Master 350 | MS63-60 | 404-20 | 402-14 | -- |
| Spray Master 450 | MS64H-60 | 404-20 | 402-14 | -- |
| Weldskill 400 | 64A-60 | 404-20 | 402-14 | -- |
| MINI MIG | -- | 404-20 | 402-19 | 404-64 |
| Tweco Robotic Air-Cooled | Robotic Air-Cooled | 404-20 | 402-19 | 404-63 |
NOTE: The TOUGH LOCK Retaining Head (404-20) will fit on most Tweco goosenecks
with an external 9/16" - 18 thread, regardless of conductor tube angle.
with an external 9/16" - 18 thread, regardless of conductor tube angle.