of the highest quality vs high quality

They’re both fine in terms of usage. But here’s something that you should ask yourself.

Is the product you’re making the best? If nobody else can make the tool to the same standard, then you can use the term ‘highest‘. If you just mean good quality and no defects, you should go with ‘high‘.

The reason is that, first, the term highest is the superlative form of high. Second, it is like a marketing or promotional script so you’re trying to speak good of your product.

As for the words produce and create, these are synonyms. Today, many people use words like assemble, build, create and manufacture to mean the same thing. But again, it comes down to the context where the words are used. Given the piece of script, either of your words sounds fine.