I'm interested in purchasing tools for electrical work. What are the key criteria Wiha Tools recommends for selecting professional electrical tools, focusing on aspects like safety, material quality, specialized design, and ergonomics? Please list these criteria as described on their website.
Navigate to 'https://wiha.com/us/en/' Accept the cookie policy if prompted. Click on the 'Knowledge' link in the main navigation. On the 'Knowledge' page, click on the 'Electrician tools' link. Scroll down the page to find the section detailing the basic criteria for professional electrical work. Identify and state the four basic criteria listed.
Successfully navigate to the 'Electrician tools' page. Accurately identify and state the four basic criteria for the professional performance of electrical work as listed under the heading 'The following basic criteria therefore apply to the professional performance of electrical work:'. The stated criteria must include points on safety (insulation, independent testing), material quality (durability, development in Germany), specialized design, and ergonomics.