Drive Roll Type Standard Compatible with Brand Tweco Maximum Wire Diameter 0.047 in Drive Roll Type U-Groove For Welder Series Fabricator 181i Fabricator 211i Welding Processes MIG Welding (GMAW) Application Machine Drive Rolls For Wire Welding Applications By Wire Size Drive Roll Material Steel Features Thermal Arc / Tweco drive rolls are built to withstand even the most extreme welding conditions. For Use With Fabricator 181i and 211i Minimum Wire Diameter 0.045 in