Mtd OEM Replacement Blade 335-719
FITS MODELS: 600-800 series, 1997 and newer; held on with nut; uses 285-104 jackshaft nut; 
Requires 2 f 335-719 and 1 of 335-723 for 46'' deck; hi-lift blade 
Length 16 1/4'' (412.8mm)
Centre Hole 6 pt.star 
Outer Hole 5/16'' (7.9mm)
Centre 2 1/2'' (63.5mm)
Width 3'' (76.2mm)
Thickness .120'' (3mm)