I bought these in a hurry and regretted it. The cuts were uneven and it felt like they were about to break. Industrial & Scientific? More like low quality mass production. Thanks to my knowledge gained in practice, I could tell these were not going to last long. The only pro is that they arrived quickly from the seller. But the cons far outweighed that small advantage. Save your money and look elsewhere for router bits.
Pros
High-quality cutting performance, resulting in precise and clean cuts on wood materials
Cons
Not suitable for cutting materials other than wood or wood composites
Shipping and seller were great. But it was just okay. Again and again problems with tea displays when chopping cherries, despite different settings and cutting depths. Expected more for this price.
I've made hundreds of feet of cuts in the edge of scented cedar and it still stays very sharp. I did everything in one pass and got very smooth results. Grinding is practically not necessary.
Pros
Whiteside cutters are made of high quality carbide