6 Best Manual Lawn Edgers for 2019 - peakyard May 22, 2018This manual lawn edger works by inserting the blades between the concrete and the grass (the edge) with the wheels touching the concrete. You edge by pushing the rotary edger forward while the spiked blades remain in the edge crack and cut against a stationary single blade.Author: Peak How to Use a Manual Lawn Edger | eHow www›Garden›Garden & Lawn›Garden Tools & SuppliesHow to Use a Manual Lawn Edger. A well-manicured lawn has clean, crisp edges around flowerbeds and along the walkway and driveway. To achieve this detailed look, it's best to use an edging-specific tool. While some models are motor-driven, you can buy manual models at a fraction of the cost. Commonly used around existing beds or to create a new..