Husqvarna: 601000749, 601002454. Echo: 69601552632, 720237001, 613223. Ryobi: 613223, 613223R, 719-613223-B. Set of 6 heat treated, hardened edger blades compatible with Echo, Maruyama, Ryan/Ryobi, Stihl, Green Machine, Shindaiwa, and more.
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