6 Pack Mulcher Blade, 18-3/4"Description You can count on the Oregon 94-070 replacement lawn mower blade to be the best in the industry. Our 26 quality standards ensure that you’re buying a sharphigh-performance blade that mounts properly. It delivers a clean cut for quality results.Details Center hole: 5/8" Requires 3 blades for 54" cut Superior mulching for bagging and discharge efficiency Enhanced hardening to keep the blade sharper and more durable Made to exact OEM specifications Replaces major brand: Toro and Exmark Fits Models Exmark QTE708GEM54100 Exmark Quest Toro ZX5400 Toro ZX5420 Replaces OEM Exmark 115-2454-03 Toro 115-2454-03 Toro 115-4999 Toro 115-4999-03 Toro 115-9650-03 Specs Color Black Volume 38.606 in³ Product UOM Each Weight (with Packaging) 1.905 Lb Product Height 0.164 Product Length 18-3/4" Product Width 2.25 Blade Width 2.25" Thickness 0.164" Blade Length 18-3/4" Center Hole Size 5/8" OffSet 5/16" Air Lift 7/8"