Standard Blade / John Deere TCU51118Pack Size:1John Deere TCU51118J. Thomas 330510, Oregon 92-120John Deere 1420, 1435, 1445, 1545 and 1565 front mowers; 1600 and 1620 wide area mowersLength: 21 7/8 ", Center Hole: 7/8 ", Width: 2 1/2 ", Thickness: .312 ", Heavy-duty