Contact Tip, Compatible with Brand Bernard(R), Tregaskiss, Series TT, Compatible with Series BTB, Q-Gun, S-Gun, T-Gun, TGX, Tip Shape Tapered, Maximum Wire Diameter 0.045 in, For Wire Type Aluminum, Flux-Cored, Mild Steel, Stainless Steel, Maximum Current 500 A, Connection Type Slip-On, For Nozzle Series N-, NS-, For Gas Diffuser Number D-1, DS-1, Contact Tip Number TT-045, Welding Processes MIG Welding (GMAW), Connection Thread Size 0.045 In., Material Copper, Overall Length 2 in