1 Material:65Mn 2 Hardness:46-48HRC 3 Center Hole:25.4mm 4 Length: Can be used in golf course and garden machine.Main information about the blades:1 Material:65Mn2 Hardness:46-48HRC3 Center Hole:25.4mm'4 Length:Application:Professional in Producing the lawn mower blade.We could design all kinds of cutter blades according to our customer's paper and samples.Through more than 10 years of ...