This replacement spring maintains proper nozzle tension on MB15-style MIG torches. The stainless steel construction resists heat deformation and corrosion. Precision-wound for consistent pressure that keeps nozzles securely in place. The open coil design allows for thermal expansion without loss of tension. Easy to install with standard pliers - no special tools required. Extends torch component life by preventing loose connections that cause arcing. Works with all Binzel MB15 series contact tips and nozzles. Sold individually; we recommend replacing annually or at 500 hours of use. Manufactured in Germany to original equipment specifications.