1. ABS Material: This product is made of ABS material, which is sturdy, durable, and not easy to wear. It can be used by users for a long time without worrying about quality issues.2. Product Performance: This tool adopts advanced heat treatment technology and topcoat screwdriver head, and it must have a 2 cycle engine to maintain excellent performance. It adopts a squared handle; When attempting to adjust the carburetor, it is easy to set a 1/4 turn increment on the mixture setting.3. Tachometer Function: The package contains a tachometer that can read the current engine speed and help adjust the engine idle speed.4. Convenient to Carry: This product is small in size, light in weight, and easy to carry and store; Users can easily take it to any place they need.5. Strong Compatibility: It is compatible for ZAMA, for Walbro, for STHIL, for Husq varna, for Craftsman, for Poulan, for Weeeater, for Homelite, for Ryobi, for MTD, for Troy Bilt, for Toro, for Sears; It can be used to string trimmers, chain saws, leaf blowers, hedge trimmers, trimmers, pole trimmers, and any other equipment.