We offer Leister welders, including heat welded vinyl flooring tools, with high air flow for industrial standard floor welding and fast, straight welding. Once you choose your floor welding kit, be sure to order high-quality nozzles and groovers that help you trim excess flooring material for a clean, professional finish. Winkelman push groovers, slim trim knives and pull groovers are made with long-lasting, high-quality materials.