8-TOOTH METAL BLADEL1000UMK0039*/230mm Steel Blade for thinning and clearing tough weeds, light undergrowth and scrub.Hole size: 25.4mmThickness: 1.6mmFits: UMK425U, UMK435U and UMK450
4-TOOTH METAL BLADEL1000UMK0029*/230MM Steel Blade for cutting largerareas, heavy grass and weeds.Hole size: 25.4mmThickness: 1.6mmCutting edge: StraightFits: UMK425U, UMK435U and UMK450