The best dethatching rake has a head with curved steel tines that can sink into the thatch layer and pull it off the grass. ... Ames 15″ Adjustable Thatch Rake ↓ Jump to Review BEST BANG FOR ...

A power rake is a machine with rotating tines that mechanically lift and remove thatch, which then needs to be removed from the lawn. You do not need to both core aerate and power rake your lawn.