20 Pcs Carbide Burr Bits 1/8" Shank Compatible with Dremel Milwaukee Metal Grinding Wood Stone Steel Carving Cutting Engraving Grinder Kit Attachment Rotary Tool Accessories Set Harder Than Diamond

I've used 2 bits so far and they are great. I'm using them mostly on plastic but they will chew up metal easily. They are easy to use and fit perfectly in my 3.2mm Dremel tool.

Bought these for a train repair after I had a bolt break off in the engine block. I needed to grind away some uneven metal and weld so I could get a flat surface and drill the bolt out. Used these in a cheap Harbor Freight Dremel and they worked excellent. They ate through the weld and bolt with no problem and let me clean everything up enough to get a good flat spot for my drill bit. Probably used them for around 30 minutes total and didn’t have any break or noticeably dull. I’ve only used them for this one job so far, but they did exactly what I needed. For the price I’m very happy with them. Definitely worth having around for this kind of repair.

These carbide bits are wonderful. They are my new favorite thing for grinding metal. I have had exhaust pipes stuck on my motorcycle for a good 3 or 4 years. I had tried a variety of methods to cut the the flange and bolts, with no luck. Then I found these carbide bits. I researched a lot of the different ones, and these are the best. They do not break if you use them correctly. One important thing is to make sure you have inserted them completely into your rotary tool. I used the rounded bit in the video for about 4 hours before I switched to the pointed bit. The pointed bit worked much better for the exhaust flange and bolt I was grinding. It took me about 9 hours total, which would have been quicker had I used some cutting oil on it. They do work and are solid and good quality. Mine have stayed sharp despite grinding hours with just one bit. The other photo with the black post was a hole I was grinding out to fit two pieces together. That's the same bit I used to grind both exhaust pipe flanges and bolts down and it's still very sharp. I would Highly Recommend these Carbide bits. Lots of reviews say they break, but that's because they were probably not being used correctly. You must insert them all the way down into the rotary tool. These bits are very easy to use and have many uses making it a wonderful addition to any tool box.

I only give these four stars because I haven't used them yet and can't fathom that you get the trifecta of good, cheap, and fast all in one. Was expecting decent but puny engraving bits. What I got was a set of carving and shaping bits that will actually be useful for things larger than a walnut. They match the description and actually have useful, on package details on how NOT to use them, which is slightly more important than a how-to.

Nice bits. Hope to not have to, but would buy again. They seem to trim soft aluminum nicely. We shall see how long they last.

very good quality. I was impressed and very happy. i started using them as soon as they arrived. Very good range of shapes and very sharp and durable. I have used them alot and they are still staying sharp and carve very well. I will be buying another set with some different shaped bits.

These are high quality burrs, but I didn't pay attention to the shaft size and found they don't fit mini cordless drills. So I bought another old reliable Dremel because I couldn't find mine. They do the job.

Good quality ..I used mines for engraving doing the diamond cut they work perfect and to grind small stuff. Works perfect on a dremel tool.

I use these for antler carving and they work really good for carving out lots of material quickly. They have stayed nice and sharp and continue to perform they way I need them Everytime

Awesome little set

es justo lo que necesitaba

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