🔪 Rannb Multiple-Tooth Stainless Carbide Cutting Tool Review

I bought this to cut through a piece of 16 gauge stainless steel. Low and slow with cutting oil and it cuts through as fast as you would expect from a stainless steel cordless drill. I then used it with a large two-handed drill on 3" x 3/16" mild steel pipe and it cut so well at about 200 rpm that the drill was difficult to hold. In one case I had to cut through to weld a pipe and it wasn't a problem at all. Fell out after several cuts. The saw still looks like new. It's carbide, so I was…

I bought this because I needed four 1.5" holes in 1/4" steel. I was expecting a fight at such a low price but to my surprise all four holes were cut in less than 10 minutes. I'm a retired contractor so obviously I took precautions to protect the hole saw. For example, pre-drill a pilot hole and soak the saw in oil for lubrication and cooling. My 10 minute estimate involves pre-drilling and going from hole to hole. It was a total of 10 minutes of work. I drilled a 1/8" hole. Then hole 3/16. Then

So let's talk about holes. I haven't had much experience with hole saws in the past so I was understandably concerned when I was looking for something to drill a 90mm hole in the outside wall of my house to install a mini split air conditioner. The prejudice against tools is that the cheaper, the worse the quality. I felt these saws were average for the price, but I became a bit concerned after reading other reviews. However, I gave it a try and decided the price was low enough to take the…