Why you should maintain your tools?

If you don't maintain them , they'll wear and break faster.

If you don't maintain them, they produce poorer results.

Dull cutting tools leaves a chewed-up cut instead of a nice, smooth one as an example.

When you can't use that tool any more, you'll either have to stop working while you go and buy a new tool - which will cost you both time and money.

Or pick a poorer tool and work slower, also costing you time.

Tools that get worn can also be dangerous, both to the user, to the surroundings and to other people around you. A tool that get you damaged will make you miss work, costing you time. A tool that destroys the piece you're working on, or something right nearby will force you to do repairs. That means added work and cost, and again lost time.

A tool that damages someone else can get you sued, or even jailed.

All good reasons to maintain your tools.