HIPA Carburetor Carb Adjustment Tool 21-Teeth Splined for 2 Cycle Engine Replace manufactuer part number: 530035560 Used on most 2 cycle engines; Fits many brands of equipment, including Sears, Craftsman, Poulan, Husqvarna, Weedeater, Echo, Toro, Ryobi, Homelite, and anything else that utilizes the splined stytle tool Notice: the plined tool is designed to adjust ZAMA carburetors, it won't fit carburetors