Corded scarifiers dig their cutter bundles into surfaces to remove thick epoxies, cement overlays, rust, paint, and other coatings from concrete, metals, and wood. Multi-tooth cutting wheels (flails) on the cutter bundles rotate at high speed and chip away material more aggressively than grinders and with greater control than sandblasting. Scarifiers leave a rough, grooved surface to prepare for recoating. These corded units plug into an outlet to maintain full power during operation and allow long run times for extended use.