Comments by "Paul Frederick" (@1pcfred) on "Which BiMetal Sawzall Blade Best? Let's find out! (Episode 1 of 4)" video.

I know no one does it but you should try the test with coolant. I dip my blades in water when I use them to cool them off so they don't melt and burn a hole in my wallet in the process.
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@ProjectFarm steel surface cutting speed is critical in metalwork. Books have been written about the topic. So you could touch on it some in a video. More could be made aware of some of this. There's tool speed and cutting fluid types. You got your sulfur oil, emulsified oil, organic and synthetic. You can make you own coolant out of detergent, water and oil. Who says oil and water don't mix? The trick is defoaming it. Alcohol works.
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