Question

what is the safest way to handle a sharp lawn mower blade during maintenance?
hold the blade firmly with bare hands for a better grip
use a tool to avoid touching the blade directly, and wear gloves
wear gloves, and handle the blade carefully by its edges
place the blade on a stable surface and handle it by the cutting edge

Explanation:

Holding a sharp lawn - mower blade with bare hands is dangerous. Touching the cutting edge or edges is risky. Using a tool to avoid direct contact and wearing gloves provides better protection.

Answer:

Use a tool to avoid touching the blade directly, and wear gloves