Stihl 20" MS310 MS341 MS361 Chain
1.6mm Gauge
3/8" Pitch
72 Drive Links
20" Bar
All Mower Parts UK Product Code A0637222
To check the correct amount of links required remove your original chain from the bar and place on a flat surface, the links or drive teeth are those on the inside of the chain loop that drive along the chainsaw bar and sprocket.
PITCH - Measurement between 3 rivets divided by 2
GAUGE - Measurement between the rails on the guide bar
DRIVE LINK - The number of links that sit in the guide bar
