Contact Tip, Compatible with Brand Lincoln, Series T14050, Compatible with Model K112, K113-2, K129, K231, K239, K391, Compatible with Series Full Auto Sub-Arc/Semi Auto Sub-Arc, Tip Shape Cylindrical, Duty Rating Standard Duty, Maximum Wire Diameter 0.072 in, Connection Type Threaded, For Nozzle Series T10, Welding Processes MIG Welding (GMAW), Connection Thread Size 5/16 In.-18, Inside Diameter 0.081 in, Outside Diameter 0.3125 in, Overall Length 0.875 in, Package Quantity 10