How much does it cost to switch my mower to Cutlass blades? Cutlass blades range in price from $77.25 for 14” blade to $143.50 for 26” blade. Example: A 60” deck / 3 @ 20-1/2” blades = $330.75.00 to switch over initially How much do replacement tips cost? Is there a warranty on the Cutlass blades?