Sworker 10Pcs Carbide Burr Set 1/4 Shank w/Grey Box Max Head Dia 10mm Die Grinder Bits Rotary Tools Attachment Kit Rasp Accessories Metal Wood Stone Steel Grinding Deburring Cutting Porting Carving

So I’ve had these bits for a little over half a year now in our bodyshop and man am I impressed with them. We’ve used them for standard reaming a ton and borderline abuse these bits and like in one of the images I just drilled out a couple of bed bolts that were spinning through with one on a 25000rpm die grinder and it barely even chipped the bit! (kept it cool obviously) also they are great for cutting spot welds in a pinch too haha. But man for the price these lil bits are VERY good Id recommend them

What’s highly impressed works great has held up good. Will cut steel with ease

Just what i needed to grind a strike plate on my bathroom door jam ...10mm is a perfect size and yes will probably buy another for my brother ty

Good value for the price. They work well. Calipers say they are .249" or 6.33cm which is nice because a lot of these chinese bits are actually 6mm which makes them undersized for US grinder collets. With that being said, I have had a heck of a time with them with my 1/4" milwaukee die grinders. They refuse to fit into the collets without removing the lock nut and collet, and then when I get done I basically have to clamp the bit in a vise to pull the bit and collet back out. So far I have just used them on aluminum and they have worked as well as I could have hoped for the price. Don't forget your safety squints.

Honestly my favorite expectations were very low considering the reviews, price, and brand name. I decided to give them a shot based off the price. I have never been more surprised by a tool on eBay. These Burrs work extremely well and I have tortured them! They are still sharp even after gnawing on stainless steel multiple times. I am impressed with these.

These burr bits worked great for cutting 1/4" carbon welds in a production weld shop. Would recommend to anyone that asks.

Used a bit from this kit to remove a broken extractor that was stuck in a seized and broken exhaust manifold bolt. Was able to chew away the extractor and bolt without damaging the threads. After completing the task, the bit still looked brand new, with crisp sharp edges. These bits will chew through just about anything, even ripped through a craftsman wrench (as a test). Used in an air powered 1/4” die grinder set at 90psi. Would recommend this product.

Great set that does the job.

Excelente calidad y precio

Great little kit of carbide burrs, various shapes for any project that requires them. They work like a charm. 5/5

Actually have held up well

Exacly what I was looking for. Better than expected

I don’t know how I functioned in home repairs and improvements without this type of thing. Reeming out lock strike holes and eliminating deadbolt friction on strike plates is reason enough to be glad I bought this set. Also am happy I got the case with it, as it makes selection of appropriate bit easy.