Tungsten Carbide Saw Chain 20 inch 3 or 8. 058 72DL for Stihl Magnum MS 291 066
058 72DL for Stihl Magnum MS 291 066 661. Fits for STIHL Chainsaw, most models Including Farm Boss, and Magnum MS290 /MS291/028/034/036/ 038/ 039/ 041/ 044 /056/064/066/660/661. Fits for most Stihl Saws with 20" bar.