Wire Feeder Roll V U K Knurl Groove 30x22x10mm for 0.8 1.0 1.2mm Steel Aluminum Flux Cord Welding Wire MIG Welding Machine|Welding Torches| - AliExpress
How the HELL do you change the drive roller if there's no set screw? : r/Welding
Amazon.com: MIG Welding Machine Wire Feeding Roll V U K Knurl Groove for 0.8 1.0 1.2mm Steel Aluminum Flux Cord Welding Wire Feeder Roll (0.8/1.0mm (0.03/0.04”), U-Groove) : Tools & Home Improvement