Sharpen Blades with an Angle Grinder

What happens here

Secure one of the dull blades in a sturdy bench vice. Using an angle grinder with an abrasive disc, begin sharpening the cutting edge. Focus on maintaining the original factory profile, especially the 'lift' that pulls grass upwards. Start by removing major burrs and damaged areas, then work down the edge evenly. Repeat this process for the other side of the blade to remove any burrs that may have formed. The goal is a sharp edge, not a 'razor sharp' one.

Goal: Restore the sharpness of the blades while maintaining their original profile.