This unit and parts are all stainless steel except for the auger bushing, thumb screw, stuffing tubes and the rubber pads.

While this grinder should be able to grind fish with bones, we can't guarantee that it would be safe to consume. Fish bones are notoriously small and may slip through the grind whole.

It is correct to remove the knife and plate and put in the stuffing star. Put the stuffing tube inside of the retaining ring and screw it on. The stuffing star should hold the auger center and allow the meat to flow for stuffing. That being said stuffing with a grinder, hand or electric, is not easy and the consistency of the meat is changed with the process. It is best, especially if you will be doing alot of stuffing, to use a sausage stuffer. You will get the job done more quickly, have a more quality sausage and the process will go more smoothly.

We have not tested this with grinding corn or grain. We only suggest grinding meat with the grinder.

Mine came with a stainless steel knife like it listed. When you are viewing this item, click on specs. List everything it comes with.

This product is manufactured in China to our specifications.

Bolt the grinder body using the clamp screw to a sturdy surface, which can be easily cleaned. Slide the auger in the grinder body. Attach the handle to the body using handle thumb screw. Put the knife on the square portion of the auger stud, making sure the sharp edges of the knife are facing out. Place the grinder plate on the pin portion of the auger stud. Make sure the notch in the plate is aligned with the locator pin on the grinder body. Hand tighten the retaining ring on the grinder body. Unit is ready for grinding

I used this for my dogs raw diet and it ground up the all of the whole chicken bone and all, ad long as it will fit into the hopper, works great, now I have two dogs an raw diet, bought another one, same brand but electric, love it, wouldn't have any other!

This hand grinder only comes with a coarse 3/8" plate and a fine 3/16" plate.

The most recent model that was made in 2020 and after will accommodate a 1 1/2 thick counter. The model made before 2020 will not.