This Mill is a great tool for efficiently grinding malted and non-malted barleys, corn, and grains. Adjustable gap setting for grinding 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 rollers 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.