The blades are welded with ATB tips. There are many holes on the body which can reduce the noices, the main body of the blades are made by superior quality spring steel (65Mm). It has characteristices of lightness, high effciency, low noises and long-life ect. Inorder to avoid rust and make the surface more shiny, the blades can be plated with Nickel and Chromium ect. The blades are mainly suitable for cutting grass at golf court, airport, football court, in gardens, parks ect.