General description The 28mm Spline 9T Gearbox Head is a high-quality replacement for most lawn trimmer gearboxes, designed to enhance the performance of bristling machines and grading power equipment tools. Made from premium materials, this gearbox head ensures durability and longevity. Technical specifications Item Type: Trimmer Gear Head Material: Aluminum, Stainless Steel, Iron Weight: Approx. 563g / 19.9oz Number Of Teeth: 9 Teeth Aperture: Approx. 28mm / 1.1in Compatibility and accessories Compatible with most lawn trimmer gearboxes Package List: 1 x Gearbox Assembly Usage This gearbox head is an ideal accessory for garden tools, effectively extending the service life of your machine. It provides stable performance and a perfect fit for your equipment.