STIHL RAPID Super chains are designed to get the job done quickly. Its full-chisel design cuts quicker than half-chisel designs, though be prepared to sharpen and maintain the blades as they tend to lose their sharpness quicker than half-chisel designs. It utilizes a square-cornered cutter shape to ensure minimum chain friction, giving you a smooth cut and a comfortable operating experience. | STIHL 18" Saw Chain .325" 26 RS 74