Saw Blade 1. DIAMETER:230MM,255MM 2. TEETH:36,40 3. BORE:25.4MM 4.THICKNESS:1.3MM Saw BladeTCT BRUSH CUTTER BLADE 1,FOR CUTTING GRASS 2,FAST CUTTING 3,LONG WORKING LIFE ALLOY SAW BLADES FOR CUTTING GRASS1,MANY HOLES IN THE BODY2,METERIAL OF BODY IS 65Mn ,45#,OR 50#3,POLISHING IS BRIGHT AT34: SPECIFICATION NO. DIAMETER(MM) TEETH BORE(MM) THICKNESS(MM) AT3401 230 36 25.4 1.3 AT3402 255 40 25.4 1.3