Amabur A601-10 Best Rotary Tool Double Cut Tungsten Carbide Rotary Burr Set 1/8 Inch Shank 10-pieces

for the price probably can't be beat. They don't seem to cut as quickly as I'd hoped. I don't really see the advantage of the "double cut" thing... but they do cut smoothly (if slowly). A variety of shapes at a very reasonable price. So overall, slow cutting but smooth and accurate.

Good products for the price. I haven't had any break easily. Some chipping but no problem

excellent and effective tools - I am using them on aluminum

Came as promised.

The bits work great if you cut the shank shorter

These burrs are just what I was looking for. I do a lot of metal work with my jewelry making and just a lot of crafts period. The burrs are super sharp and worked really well when grinding on the metal. The left no sharp points and smoothed it out really nicely. I also work with wood and these worked for that as well. Even after using multiple times, they are still sharp and do a great job. I received this for a discount in exchange for a honest and unbiased review. I do not get paid to review, but it does allow me to purchase items I might not be able to on a normal basis in a single family income. If this review is helpful, give is a thumbs up. Thanks.

I tested these using a 10.8V Dremel Li-Ion cordless rotary tool.I tried out 7 of the bits and found that they all had some imbalance - vibrations start around the "2" speed setting and continued up to about the "4" setting, after which the higher RPM would cancel out the harmonic.Using these on pine, they did not cut as fast as I would have expected. They did OK on a chunk of brass I had laying around. Still, for the price, they are decent bits but balance and sharpness are both fair.Sample provided for evaluation.