We’ve added a second taper at the rear of our TOUGH LOCK® retaining heads feature a second taper at the rear, so there is one taper for the contact tip connection and a second for the neck.
![Exploded view of TOUGH LOCK consumables and cutaway showing dual taper technology](https://beta.tregaskiss.com/wp-content/uploads/2020/07/dual_taper_technology.jpg)
Dual taper technology creates a more secure seat, preventing the contact tip and retaining head from loosening due to vibration.
Dual taper technology:
- Locks your MIG gun from contact tip to the neck
- Keeps your consumables running cooler
- Improves electrical conductivity
- Decreases your downtime