18 45cm chainsaw saw chain 63 links 3 8 1.3mm 0.050please ensure details listed match those of your chaindrive links number of links that sit in guide barpitch measure between 3 rivets divide by 2gauge distance between rails on guide barplease count the links on your existing chain before ordering to ensure correct chain length most chainsaws offer more than one bar length option, so chain size will vary too.suitable for the following modelscobra cs45equalcast pcs46zqualcastpcs46z sequivalent to oregon 91, carlton n1c, stihl picco micro, duro, super, stihl 63pm, husqvarna h43x, em s43x, windsor 50r, homelite 35 m50, gb sabre, tsc, excel 357, dolmar 92.