Star R-7 3/8 d17*37 d7 chainsaw chain Stihl 180

R-7 star (3/8 crown, .325"Pitch) dimensions d17*37 d7 chainsaw chains Stihl MS180 MS250 MS170 MS210 MS230 MS251 017 018 019 021 023 025, electric saws, diameters 17*37 mm, height 7 mm