General description AlwaysH Chainsaw Gear Box Gear Head Assembly is a multifunctional replacement accessory designed for hedge trimmers. It features high-quality gears that ensure stable performance and wide compatibility with various machines, making it suitable for use in agriculture, forestry, and other fields. Technical specifications Opening specification: 26mm Teeth: 9 Installation Check if the product opening specification matches your machine's opening. Remove the old gear head assembly. Install the new gear head assembly.