Review on 🛠️ Efficient Rotary Spot Weld Cutter Set: 13-pack, Double-Sided, 3/8" HSS Remover Drill Bits for Power Drill Spot Welding, Hex Sheet Metal Hole Cutter by Ronnie Staver

I had to completely remove the bottom and hood. Named brand I used both sides of the cutter in about 30 cuts. I bought these thinking I would need so many to get the job done. And then I discovered how to use cutting oil and work at low speed and I finished the other 140 or so with one side of the cutter. After reading the bad reviews about them before buying, I almost bought more big brands. I'm glad I didn't as it would be a waste of money. What I've learned maybe bad reviewers should learn. Speed generates heat, and too much pressure generates and burns heat. The oil holds and cools the teeth and reduces heat at low speeds and medium pressure, making the cutter durable.