Stens Snapper Lawn Mower Blade - 335-315 - Replaces 1-9515/7019515 / 7019515BZ 335-315 Snapper Replacement Lawn Mower Blade - Hi-Lift Blade Replaces (OEM) Snapper 1-9515, 7019515, and 7019515BZ Fits Snapper rear engine riders with 28" decks Center hole diameter is 1 1/16"; Outer hole diameter is 9/16"; Center to center is 7 1/2"; Thickness is 0.203" Blade measurements: 28" length x 2 3/4" width