Durable aluminum-alloy construction: made from aluminum alloy for long service life. The anodized outer surface forms a protective layer that resists flaking and maintains reliable performance over time. Adjustable, three-blade design: includes three interchangeable blades for flexible use across different welding and finishing tasks. Blades can be quickly repositioned or changed to match the workpiece and the required bead profile. Engineered for fillet welding and corner work: specifically designed for fillet welding tasks and for smoothing patch work on inner and outer corners (concave and convex) on walls and PVC floors. Produces smooth, consistent weld beads to improve weld appearance and quality. Secure and portable storage: supplied in a plastic stretch toolbox for safe, compact storage and easy transport. The integrated blade holder keeps blades securely fixed during use to prevent loss. Key benefits — why you need it Reduces rework by producing uniform, precise weld beads for fillet welds and corner patches. Saves time with quick blade changes and an adjustable setup for multiple tasks. Built to last with corrosion-resistant anodized aluminum, suitable for jobsite use and repeated handling. Keeps blades organized and protected in the provided toolbox for reliable on-site performance. Practical applications Finishing and smoothing fillet welds on metal frames, brackets, and structural joints. Repairing and sealing seams or corners on PVC flooring and wall junctions where a clean, consistent bead is required. On-site maintenance and patch work for interior corners (concave) and exterior corners (convex) in building and renovation projects. Materials and performance Material: aluminum alloy with anodized surface treatment. Blades: three interchangeable blades included; blades are fixed securely in the tool during use. Packaging: plastic stretch toolbox for storage and transport. What it does not assume No specific electrode or blade sizes are required beyond the included three blades; use the blade position that fits your task.