Nozzle Compatible with Brand TOUGH LOCK Series Tough Lock Compatible with Series Tough Lock Bore Diameter 5/8 in Connection Type Slip-On Nozzle to Tip Relationship 1/4 in Recess Nozzle Shape Tapered Material Brass Insulation Type Fiberglass Insulators Duty Rating Heavy Duty For Gas Diffuser Number 404-26 404-32 Welding Processes MIG Welding (GMAW) Application Automotive Fabrication Manufacturing Compatible with Grainger Part Number 38VM21 38VM27