The mower blade system provides one or more blades, preferably two, secured to a housing that is attached to the mower. The blades provide a cutting edge that is sharpened for mowing the yard, lawn, field, or other area. The blade attaches to an attachment arm via a locking body and retention body. A pivot aperture of the blade is placed upon a pivot finger of the attachment arm that secures the blade on the attachment arm. The locking body abuts the pivot finger to secure the blade on the pivot finger. The retention body then slides over the locking body to further secure the blade on the pivot finger.
