The Twin Roller Mill is a great tool for efficiently grinding malted and non-malted barley, corn, and grain. It has an easily adjustable gap setting so you can grind grains and other materials to perfection. It comes with a longer shaft so you won’t hit the pail while grinding with the hand crank. The roller are made of Stainless Steel. The Standard Hopper holds 10 lbs.It has a solid base and can be easily attached to a drill with no extra parts. When using a drill at 500 RPM you can crush up to 6 pounds per minute.It is also easily adjusted to different size buckets.