Sworker 5Pcs Carbide Burr Set 1/4 Shank w/Clear Box Head Dia 8mm Die Grinder Bits Rotary Tools Attachment Kit Rasp File Accessories Metal Wood Stone Steel Grinding Deburring Cutting Porting Carving

Work awesome. Eats through mild steel plate with no signs or wear after 1 night in the garage on a Dewalt die grinder. At this price just get them.

A great burr kit with a good assortment of shapes. Key is that they are carbide and if you don't abuse them (let the burr do the work) they should last a long time. I needed just the one for widening up a gauge opening in a headlight bucket but it made more sense to get a kit

I needed a rotary file that was sturdy with a strong shank to eat away at part of a bolt inside a large nut. These did the job rather quickly and finely as I could not damage metal surrounding the object.

These work well. Just know how to use them. No letting them bounce off the work and a light touch they do the job.

Looks like good quality have not used them yet but when I do I'm sure they will do the job

These worked really great. Had to use them in my screwdriver since I don’t have the project in my garage where air is available. The screwdriver is very slow, but they worked better than I expected.

Work great on enlarging lock strike plates that are misaligned due to saging and deburring holes in metal

I beat up a few of these today, they hold up good for the money.

Works well, at least for now, no vibrations and good material removal.

Son de buen material y funcionan bien

Nicely made, but my pneumatic die grinder takes a lot of air. Used with a flex shaft on a drill press.

smaller than expected, but they work well. They bite and chew well

Excellent cutting bits , had to cut a seized nut off a CV drive shaft these guys did it. No visible wear after either .