Slit seeders (overseeders) cut shallow grooves into existing turf and drop seed straight into them, giving better seed-to-soil contact than broadcasting over the surface. The Classen TS-20H 20″ walk-behind turf seeder uses a Honda GX160 engine, a front seed drop, 26 dual-edge heat-treated blades at 1.5″ spacing and an elevated, removable seed box. It converts to a turf rake or vertical cutter with optional attachments.

Step-by-step timing, seeding rates and prep are in how to overseed a lawn. Many lawns are cored first: see the core aeration guide and core aerators.

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