This is a very well made product as one would expect given the price and the Bosch range of tools. It's sharp, well-made, cuts cleanly and quickly. Carbide tips should provide excellent service life. I only downgraded the bit to 4 stars because it is very difficult to remove the cut material from the autoloader stock. But in the photo you can see that none of the cutters reach the self-loading shaft, as is the case with all self-cleaning ship self-loading augers. If the bit doesn't clean itself out of your material, you're limited to about 1/2 inch bit height. This product has the same caveat as a bit that is cheaper, even with a comparable carbide tip. versions. For some special applications this is clearly a desirable product. For general shop use, you're probably better off with a traditional ship's drill bit or hole saw.