Husqvarna Clutch key very many hobby saws from Husqvarna McCulloch, Jonsered, Poulan, Partner

This product fits for type
Husqvarna: 36, 41,120, 120Mark2, 130,135,135Mark2, 136, 137,140, 141, 142, 230, 235, 236, 240, 135, 140
Jonsered: CS2234, CS2238, CS2040, CS2137, 2035, 2036, 2040, 2050, 2055, 2075 2150, 2175,
McCulloch: CS340, CS350, CS380, CS410, MAC 20X, MAC 2214AV MAC2316AV, MAC 325, MAC340, MAC 4-10XT MAC4-18 XT, M3816, M3616, M4218, M4620

And various Partner and Poulan saws, for the complete range see the Clutch 599588601 and then at the bottom which machine that clutch all fits. What you see there this clutch key also fits all of them.