Utilizing multi-material cutting technology. The R185CCS Circular saw is optimized to cut mild steel, non-ferrous metals, wood, even wood with embedded nails and plastic with a single blade! No blade changes = hassle free, fast & easy work! It is safer, faster and more economical than abrasive metal cutting saws - when cutting mild steel The saw produces no heat, no burrs and virtually No sparks. The cuts are clean and cool to touch, creating an instant workable finish.