T.C.T grass cutting blade Tooth number:20/36/40/52T Outer diameter: ... 1.6mm Center diameter:25.4 T.C.T grass cutting bladeTooth number:20/36/40/52T Outer diameter:200mm Diameter ... 6mm Center diameter:25.4tct saw blade for cutting grass TCT saw blade for cutting grassSizes:6", 8-1/2", 9", 10 ... .2mm Tooth Number:20/36/40/52TIt's designed for cutting grass at golf count, airport, football count, in gardens, ...