⚙️ JESTUOUS Carbide Burr Set - 8pcs 1/4 Inch Shank Diameter Double Cut Edge Rotary Files for Metal Grinding, Polishing, Carving - Die Grinder Kit Drill Bits Review

These are great parts and saved me a lot of sawdust. I bought a more expensive set and within the first two minutes they were flat and unusable even though I was only sanding sheet metal. I bought them and went through my entire project and couldn't even tell they were used. Very very happy with it.

This was a great investment in our tool collection. These little kids really get the job done with no visible wear and tear. Flattens steel quickly. I can't tell you how much we love them and we are in the metalworking business. You can't go wrong with them, so happy with the purchase!

I used them to grind many MIG welds on a 3/16 inch sheet steel fabrication project. They cut well and are durable. I've used them with both air and electric sanders. Great basic set that won't let you down at a very reasonable price. Being in the industrial services business for almost forty years, I think you will be satisfied with you.

Really good for the relatively cheap price. I used them for grinding mild steel. However, the largest piece was aimed at me, which then rendered it useless. As for the way it bent, when I sanded it caught on the edge which caused my sander to bounce around a bit. And that was enough to bend him. This also caused many of the teeth on it to break. A better bit wouldn't have this problem, but it would also cost the same as this whole set of bits. So you get what you pay for as they worked well…

Great parts. I had to destroy one to understand the truck with them. I got them to clean up welds on the inside corners of a project I'm working on. 1. Make sure you wear glasses AND a face mask. It doesn't grind, it cuts chips and throws them at you. 2. Do not press too hard on the item you are cutting, let the grinder speed do the work. I pushed too hard and the bit caught and cut into the side, causing a rattle and breaking my first bit. After figuring this out, my next bit took 20x longer…

These are very strong bits but they cannot sharpen hardened steel. As a hobby, I hack old payphones that have two locks (the top one is for the phone, the bottom one is for the coin). The bottom lock is heavy duty steel and they haven't done anything to it. However, they broke the top latch and showed no signs of wear. A photo of a worn bit looks like it was reversed in some way (need not have been a real bit grinder), or maybe cutting lube wasn't used. Even with hardened steel, there weren't…