Centerfire™ Contact tip for 0.045 inch wire for use with Bernard MIG Guns. 10 per package. Drop-in, threadless contact tip (no tools required to replace tip or nozzle) means quick change after contact tip failure thereby reducing downtime. Large diameter tip base with tapered seat provides better electrical conductivity and heat transfer. Spatter shield within nozzle holds tip in place, protects diffuser and directs gas evenly with reduced turbulence.