The UNIMIG V Groove Spool Gun Drive Roller is purpose-engineered for consistent and secure feeding of solid steel MIG wires in portable spool gun systems. Its hardened steel body and precision V groove ensure minimal wire slippage and long service life, even at high feed rates. Designed for direct-feed guns with short liner paths, this roller offers smooth delivery and accurate drive engagement to support high-quality steel MIG welding. Compatible with UNIMIG PLSP-series spool guns and available in 0.8 mm, 0.9 mm, and 1.0 mm sizes, it’s an essential component for professional light fabrication, automotive repair, and structural steelwork.