I purchased this grinder to make home-made cat food. The grinder sent to me was either a return or the manufacturer did not do good quality control. The box I received was missing the thumbscrew so I couldn't attach the handle, the blade rusted almost immediately after washing for the first time and the retaining ring would not screw on securely so it would pop off when grinding. The rest of the grinder seemed of good quality, but the most important parts were horrible. Best Buy's shipping and customer service were excellent; it was shipped to my local store two days early and I was able to return it easily.