Сало или Wurth? Тест смазок для нарезания резьбы. Результат удивит.

Supposedly, the best lubricant is lard or oleic acid. I decided to test different lubricants. I divided all the lubricants into three categories. First, kitchen and household lubricants. Slalom is at the top. Second, various oils. And third, special expensive thread cutting fluids. Our task is to determine what constitutes marketing when they sell us expensive crap. And we need to find a lubricant that actually works.