Saw Chain Selection & Identification - STIHL USA
stihlu a 41 Saw Chain Selection & Identification Pitch 1 = 1/4" 2 = .325" 3 = 3/8" 4 = .404" 6 = STIHL PICCO™ (3/8" Extended) Cutter Type P = STIHL PICCO™ R = STIHL RAPID™ Cutter Shape C = Comfort (Low-Vibration Version) D = Duro (Carbide Tip) DS = Duro Special (Carbide Tip) M = Micro™ R = Rescue (RDR chain, especially designed for MS 460 R STIHL