Most people run one chain and use it for everything and it makes sense if you're doing light mixed work but if you're doing any volume of work, having a dedicated chain for each job type pays off in performance and chain life.
Semi-chisel holds its edge longer on dirty wood, hardwood or wood with grit contamination. Full chisel cuts cleaner and faster on clean softwood, ripping chain (low kickback, flat-ground) is for milling lumber and skip chain for softwood bucking work where speed matters more than fine cutting. Bar length and pitch matters too, matching your chain to your bar and sprocket properly extends everything's service life.
Semi-chisel holds its edge longer on dirty wood, hardwood or wood with grit contamination. Full chisel cuts cleaner and faster on clean softwood, ripping chain (low kickback, flat-ground) is for milling lumber and skip chain for softwood bucking work where speed matters more than fine cutting. Bar length and pitch matters too, matching your chain to your bar and sprocket properly extends everything's service life.
