Miller Spoolmatic FasTip 206188 MIG Gun Consumable, Contact Tip, Style: Roughneck, 5/16 Inch Outer Diameter, Copper, Tip Size: 0.053 Inch, Wire Size: 3/64 Inch, Amperage: 30 amp, Series: Roughneck, For Type/Brand/Model: Spoolmatic And XR Pistol Grip Gun