Simplicity OEM Replacement Blade 345-082
FITS MODELS: GTH-L 700, 900 and 7000 series 
Requires 3 for 48'' deck; hi-lift blade 
Length 16 3/4'' (425.5mm)
Centre Hole 3/4'' (19mm)
Outer Hole 3/8'' (9.5mm)
Centre 3 1/16'' (77.8mm)
Width 2'' (50.8mm)
Thickness .187'' (4.7mm)