No tools required to replace tip or nozzle. Drop-In tip with no threads means quick change after burnback, reducing down time. Large diameter tip base and tapered seat provides better electrical conductivity and heat transfer. Spatter shield within nozzle protects diffuser and gives smoother, less turbulent gas flow. Solid, concentric relationship between tip and nozzle keeps tip centered even after hard use and abuse. Threaded nozzle holds tip fixed at 1/4 or 1/8 inch recess, flush or 1/8 inch stick out. Compatible with all standard air cooled Bernard guns. Complete family of tips and nozzles is available to meet most of your welding needs. All components manufactured with pride in the USA.