cause a dull tool hurts more if it stabs you and a sharp tool is fast and slick going threw you.
Tools meant for cutting have sharp edges because a sharp edge requires less force to cut through materials, making the process more efficient. Additionally, a sharp edge creates a cleaner and more precise cut compared to a dull edge. Regular maintenance of the tool's sharpness is important to ensure its effectiveness and safety.
You should know the angle of the cutting tool. You can use emery sharp cutting tool.
I would go with a broadcast spreader and use dry fertilizer , might be safer than using liquid fertilizer with a sprayer.
knife
cut
You don't have to, but gloves are a safer sex tool.
Smoothening sharp bits of material of a workpiece.
Sharp
The best thing to do would be to sharpen your tools, a sharper tool is safer than a blunt one. Then use something like sycamore or lime.
you use a tool to provide a radius at he sharp corner, to reduce the stress concentration
A sharp pencil or a scribe.
A sharp knife, and a pair of scissors.