Most of the mechanic's tool kit sets often start from $70 and go as far as $300 and even more depending on the tool kit set and brand you buy. This always raises the question of why these tool sets are so expensive and why do mechanics spend so much on tools. The answer is that you need quality products that last as long as a lifetime, and quality products do. Of course, an anti-corrosion-protected tool will cost more than a simple iron tool with no chrome polish. The companies charge you for quality, so you invest once in a mechanics tool set and use them comfortably as long as you want.