T.C.T grass cutting blade Tooth number:20/36/40/52T Outer diameter: ... Diameter:1.6mm Center diameter:25.4 T.C.T grass cutting bladeTooth number:20/36/40/52T Outer diameter:200mm ... :1.6mm Center diameter:25.4tct saw blade for cutting grass TCT saw blade for cutting grassSizes:6", 8-1/2 ... Tooth Number:20/36/40/52TIt's designed for cutting grass at golf count, airport, football count, in gardens, parks etc ...