Review on 🔪 Rannb Multiple-Tooth Stainless Carbide Cutting Tool by Peter Nobles

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 the corresponding hole for the pilot. I didn't use a cutter pilot. I used the saw for 3-5 seconds and dipped it in the oil bucket as I didn't have any spray bottle on hand. It took about 8-10 cycles of cutting for 5 seconds and dipping. I still can't believe how well this worked for $12. It still cuts at the same speed as the first hole, so I can use it again, but as far as I know it has already paid for itself.