COMPREHENSIVE SET: The Performance Tool W1185 Carburetor Adjuster includes 6 of the most common 2-cycle, small engine carburetor adjusting tools in one pack. PRECISE ADJUSTMENTS: This tool aids technicians in making adjustments during tune-up, keeping engines within EPA standards for optimal performance. WIDE COMPATIBILITY: It fits various brands such as Craftsman, Stihl, Poulan, Husqvarna, Weed eater, Echo, Toro, Ryobi, Homelite, and some brands that utilize a splined adjustment screw. VERSATILE SET: The set contains 21 Teeth Spline, 7-Teeth Spline, Single D, Double D, Pac Man, and 4mm Hexagon tools to cover various adjustment needs. ERGONOMIC DESIGN: The ergonomic handle provides comfort for easy and precise adjustments to the carburetor, making the Performance Tool W1185 a must-have for any small engine repair professional.