Stihl’s MS 290 Farm Boss chainsaw model has a 20-inch guide bar and chain. Chain specifications are published showing which chains match the bar. The most important measurements are pitch, and that’s how far connections are on assess, and the series, which describes the width of drive links that fit into the guide bar. Another dimension is that the number of drive links on this series.

Selecting a Chain

The pitch dimension for an MS 290 chainsaw is either 0.325 inch or 3/8 inch if Stihl’s reduced kickback guide bar is used. From the chainsaw’s owner’s guide, Stihl recommends utilizing Stihl’s low kickback chain with a 0.325-inch pitch and also the Rapid-Super C3 or Rapid-Micro C3 chain with a 3/8-inch pitch. Measure dimension must match the bar groove thickness. The most common indicator is 0.050 inch. The number of drive links generally is not listed in the operator’s manual or on the chainsaw needs to be relied upon a string of the chainsaw.

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