.325" Super 20 Pitch 25 Ft. Roll Chain .063" Gauge - High-performance chain for .325" -pitch saws. New advanced grind geometry significantly improves out-of-box sharpness, substantial speed improvement in boring and bias (undercut) modes. Blued cutters provide superior corrosion resistance; top-performing square-corner "chisel" cutters, the .325" version of the popular Super 70 chain, Vibe-Ban chassis design reduces vibration 25% or more at chainsaw's handle, LubriLink tie straps help keep oil where it's needed - on the chain. Top-plate witness mark makes accurate sharpening easier. Specially built to cut effectively in extremely dirty, abrasive conditions.