Snapper OEM Replacement Blade 335-422
FITS MODELS: 28'' and 33'' blades
Air-lift kit includes hardware; fits 335-57 and 335-331 blades 
Length 4'' (101.6mm)
Outer Holes 5/16'' (7.9mm)
Centre 1 1/4'' (31.8mm)
Width 3 5/8'' (92.1mm)
Thickness .134'' (3.4mm)