Replacement manufactuer part number: 530035560,please check for the details to make sure this part will fit.Used on most 2 cycle engines; Fits many brands of equipment, including Sears, Craftsman, Poulan, Husq-varna, Weedeater, Echo, To-Ro, Ryobi, Homelite, and anything else that utilizes the splined adjustment screws.Squared handles which makes it easy to tell 1/4 turn increments on the mixture settings when trying to tune a carburetor; Advanced heat treatment process and corrosion-resistant finish screwdriver bits.High quality material and durable:The material is Y15 iron with nickle plated, ergonomic designed handle provides comfort for working, heavy-duty adjusted head, precise and easy to adjust the carburetor.Compartible with: most 2 cycle engines, for Sears, Craftsman, Poulan, Husqvarna, Weedeater, Echo, Toro, Ryobi, Homelite, and anything else that utilizes the splined adjustment screws.