These ceramic hole saws work wonders when it comes to cutting through hard surfaces. The diamond coating ensures a smooth and precise cut every time. Industrial and scientific cutting tools don't get any better than this. The only downside is that they are a bit pricey, but the quality makes it worth the investment. Highly recommended for those who demand precision and efficiency in their cutting tools.
This saw was used to cut a hole in the tail light glass for the blue dot. Used a large amount of cutting fluid, "oil and water mix", cleanly cut a 1/8" thick lens in about two minutes. Very satisfied.