Carbide Burrs Set 10pcs Double Cut Solid Carbide Rotary Burr Set 1/4 Inch Shank for Die Grinder Drill,Metal Carving, Polishing,Engraving,Drilling

I like that there are 10 of them with 1/4 inch shafts in a case to keep them together. I did find they were a little smaller than what I expected but they will still do what I need them for.

Appear to be high quality, one-piece bits and the first one I used with a die grinder cut steel very well.

They work great! Using them with a die grinder on aluminium they chew it very quickly so you do need some skill in controlling them.

Bought these to work on aluminum parts with. Quality appears good and the case is well made (especially compared to most that come with tools nowadays). I'll update the review if I find anything negative-- no update = all good.

Good selection of bits for general metal fabrication. I found the specific shape and size selection of bits in this set to be very useful. I ordered these in addition to a few that came with my astro die grinder set and the ones that were included in the set were nicer and came in a much better case. This one doesn't hold the bits very securely, the part that is supposed keep them from coming out inside the case can move letting most of the bits fall out while closed, which happened during shipping. Some double stick tape, glue or any other adhesive could prevent this. But the real bummer was when I opened the case up the lid would just fall back down. On mine the holder for second row of smaller bits wasn't attaching well to the piece for the bigger bits. I took the pieces off and there's a slot with a detent bump on the smaller row piece where it's supposed capture the little pin on the bigger row piece. They weren't going to line up so I just put a screw through the side of the case as shown in the picture and it works great now. I also used the vhb tape in the photo to secure the piece that holds the bits in. I almost threw the case away but it's actually a pretty nice, really rigid little box and so I made it work! Hope the bits don't need the same degree of babying to work well!