Low Profile chain 3/8" pitch - 91VX. This high performance low profile chain is ideal for professional users, using lightweight chain saws in commercial operations such as tree surgery and pruningFeatures:- Chamfer "Chisel" cutters have an angular shape with twin cutting corners that offer outstanding performance along with durability and easy, forgiving maintenance comparable to round-corner chain.- Ramp-shaped depth gauges reduce kickback- Vibe-Ban: chassis design reduces vibration 25% or more at the handles- Lubrilink: tie straps help keep oil where it is needed-on the chain- Lubriwell: oil holes in all drive links help carry oil around the full length of the guide bar's groove- Recommended for lightweight petrol saws, for bars from 12" to 18" (30cm to 45cm)- Use on bars with a groove width of 1.3mm (0.050")Specification:Number of Drive Links: 57How do I measure the length of my chain? The length of your chain is determined by counting the number of drive links in your chainYour dri