John Deere OEM Replacement Blade 330-266
FITS MODELS: LT166 series with 46'' deck;120,140, 300-332 and 316 (-09500) with 46'', 47'' and 48'' decks;
Sabre 546 and 1646 lawn tractors with 46'' decks 
Requires 3 blades; hi-lift blade
Length 16'' (406.4mm)
Centre Hole 11/16'' (17.5mm)
Width 2'' (50.8mm)
Thickness .203'' (5.2mm)