The Hobart 770183 0.045-Inch MIG Contact Tips fit Millermatics, Hobart Handler models 125, 135, 140, 175 & 180, Hobart IronMan 250, and later model Beta-MIG 1800 & 2510 welder.Features:Compatable with several make and model MIG weldersWhat's In The Box:Five Hobart 770183 0.045-Inch MIG Contact Tips