How to care and maintenance of hand tools?

As I know, proper stacking and sorting can increase the life of a tool, and in general, if you're working with reliable and high-quality tools, they'll last longer. You can check out powermentools.com and learn how to choose good tools there, and the chances of them breaking or having any defects are way too low.

I'd say you just need to buy high-quality tools, and they'll definitely serve you way longer than some cheap ones.

through proper stacking and sorting the tool life can be increased

some hand tools maintenance possible and some of them not possible if not follow safety instruction and proper storing techniques 

ordinateur bureau et portable 

1. Tools must be kept clean and free from corrosion

2. Keep metal parts lightly oiled

3. Remove burrs from edges of tools and heads of chisels.

4. Tools which are not in used must be stored separately

5. A good worker regularly inspects his tools 6. Do not use tools without handles