Carbide Burr 1/4" Shank, SB-5 Tungsten Double Cut Rotary Die Grinder Bits - Cutting Burrs for Milwaukee, Dewalt and Makita Die Grinder Accessories - Wood Carving Metal Working & Sturdy Storage Case

I used these to bore bushing to fit larger pins on an old dozer. No other bit would really take metal being that bushings are extremely hardened. It wasn't easy but I got through all of them with these 3 bits and still use one although it's pretty dull now. On average material, these would last a long time. They come in individual cases so they don't get chipped up. Fastest cutting die grinder bit this style that I've ever used. I used them on an pneumatic die and the DeWalt 120v die grinder. Great cutting bit. Will be buying more.

works good

Needed to grind off striped star top screw for def tank and 1did the job thank you

Didn't expect much because of the price tag, let me tell you, this thing is a beast!Extremely stable, smooth when cutting (no jumping around) and precise. I was using the kobalt 24v straight grinder tool and it was flawless. Cuts through aluminum like butter and the chips evacuate steadily and efficiently which is amazing especially with aluminum.I'll buy the other types as I need them.If you're thinking about it, don't, just Buy itYou won't regret it.

Had to replace my door hinge pins on my Jeep, so I had to grind off the factory heads and there wasn't enough room to get a cut off wheel in there, this worked absolutely flawless!!

Make sure you have all your PPE on because these bits cut through mild steel like crazy and metal flakes/shards go everywhere! I got the 3-pack so I made sure to have enough to finish the project but it wasn't necessary. Definitely recommend!

Cuts very well

I used this to mill out a pair of aluminum bmx handlebars. It worked for the job but is gunked up with aluminum and I wont be able to use it for anything else.Edit: seller contacted me after review and offered me the money back. That's pretty cool. I dont need it though. Did the job I wanted it to do and that's fine with me. Just thought it was cool though.

Always skeptical about tools out of China. After 30 minutes of use, still going strong. A pleasant surprise thus far.

Muy buenas limas rotativas buena calidad gracias taita oor fabricar lkmas rotativas muy buenas

Didn't actually know these existed, duh ! So having read the reviews and needing one for a scaffolding bracket, long story (Christmas tree topper stabiliser), I needed to remove a lip from a scaffolding bracket, with my trusty Dewalt and one of these, in next to no time lip pretty much gone and the head still sharp if I ever need it again. Tried using it in several ways but found a lower speed and don't press too hard appears to work the best, the Dewalt chuck would become loose so had to retighten it, but that could have been me. If you need something grinding in smaller spaces, these are worth a try. I would purchase one again should I lose this one. I did purchase another brand at the same time in case this one failed, but not necessary.

Bought 2, one for myself and one for buddy because I chipped the hell out of his lol he was overall impressed with it and so am I. No chipping after a solid hour of grinding away.MAKE SURE the bit doesn't get too hot, nor start bouncing when you're using it, that's when you start chipping the teeth.

Better than expected will grind hardened steel