Open-Box, new item -Pack of 4 replacement chainsaw chains for 16-Inch (40cm) guide bar. Drive Links:56 DL, Pitch:3/8'' Low Profile, Gauge:0.050'' (1.3mm-Fits these chainsaw models: Oregon, Bosch, Dolmar, Homelite, Echo, Makita, Husqvarna, McCulloch,Craftsman etc. -Unique cutter design cuts smooth and fast.Bumper drive link paired with depth gauge design,helps reduced kickback with a higher tolerance for debris. -All the chain cutters are imported steel,anti-fracture,high toughness,while having better wear resistance. -Precision heat-treated cutting chain-Reduce wear and chain adjustments smoothly-Has a semi-chisel cut-Stay sharp for longer time-Less maintenance and downtime