There are 3 carburetor tools consisting of pac man tool, double D tool and splined tool, which are replacement adjusting tools for many brands of equipment. It fits for MOST 2 cycle engines, including Sears, Craftsman, Poulan, Weedeater, Echo, Toro, Ryobi, Homelite, and anything else that utilizes the splined adjustment screws. Notice: It won't fit WALBRO carburetors which may need a 22-teeth tool; It is updated from previous 7-teeth to current 21-teeth. Specifications: Type: Double D, Pac Man, Splined 21T Total length: about 152mm/ 5.98 inches (nearly 160mm) Handle length: about 84 mm / 3.31 inches Application: Carburetor Repair Tool Anti-explosion: Yes Magnetic: No Insulation: Yes Material: Steel Tool Color: Black Package Includes: 1 x double D screwdriver 1 x1 tooth screwdriver 1 x 21 tooth screwdriver