Carbide Burr Set with 1/4''(6.35mm) Shank 8pcs Double Cut Solid Carbide Rotary Burr Set for Die Grinder Drill, Metal Wood Carving, Engraving,Polishing,Drilling

I certainly don't expect much from most of these made-in-you-know-where tools, but these actually work really well. I used one to grind a larger bolt opening in the shock tower of a car. The steel was pretty thick, and this did a great job in short order. Ported an exhaust manifold with another and it took no time at all. I've used several of them multiple times by now and they show no real wear. Very happy with these.

These bits are perfect. They are sharp and seem to be staying sharp.

i'm impressed with the quality and the way they cut for the price ya can't beat it!

Works as intended. I’m satisfied with the quality to price ratio. Working good so far. Hope they don’t get dull soon as they we’re pretty cheap.

Have used these sporadically since I bought them about 3 years ago. Had to grind out a bunch of MIG tack welds yesterday and was very impressed at how well they cut (fast!), how easy to control in steel, and how little damage I did (even in inside corners where it was hard to control chatter). A few tiny chips - sorry, no pictures - but I think that is down to me letting it chatter a bit. Definitely recommend and would buy again.

Good set of metal working burrs

Let me start off with i don't write a lot of reviews however i took a chance on these even though it had some bad press. I am a heavy crane/truck mechanic and do ALOT of fabrication and repair and i put these to the test and they performed perfect see the pix. One of our low boy trailers had some cracks in a tight area i used these to hog out some metal and old welds they did every what i wanted them to and still look and cut like new. I will be getting a set for my home fab shop. They also got my for grinder chuck fine. Ps i want easy on them either.

Seriously, these things work GREAT. You attach them to a drill and it becomes a little grinder. For example: My idiot homebuilder left a nail tip poking through a stair tread. It was jusssssst the tip, not a real hazard, probably not gonna get tetanus, but I could feel it in my bare feet every day. I read all kinds of discussions which basically said "suck it up, kid, you're gonna have to get back there and pull the nail or I GUESS you could do some horrible thing with a drill bit or rotary tool". I can't get back there. Enter the carbide burr, specifically THIS carbide burr set. Toss one on the drill, sit down there, give that little pokey nailpoint turtle head a long stern look, get yourself good and stable, spin it up and bring it down. In no time at all I'd worked the head down to just a wee hair below the wood surface, using the pointiest burr -- far enough below that you can't feel a thing, but not so far there's a hole that needs filling. You'd never know there was a problem. And the burr was like "I'm sorry, was there some nail steel there? I didn't feel anything. Look, I'm good as new ✨ not even a scratch". So if you've got a spot of metal (or anything else really) in your life that you'd rather not have, take it to burr-town and turn it into filings.