The bits are excellent and quite sharp. As others have pointed out, the only problem is that they are difficult to get out of the box the first time without cutting yourself. sides, so unscrew it and put it in a vise. Wrap a soft, thick towel around the sharp blades to protect them and yourself, and gently pull them out of the block one at a time with the tongs on the towel to avoid damaging the blades. Once they're out, push them back only halfway so they can be pulled out easily but won't fall out, then screw the holder back into the case using the original holes.