About this item High-quality Material: The carbon steel rollers and stainless steel housing and hopper give this grain mill grinder high hardness and keep it sturdy and durable. Adjustable Roller Gap: For the grain grinder, by adjusting the screws, the gap between the two rollers can be adjusted(0-2.5mm) to the right position for an even grinding effect with minimal husk damage. Large Capacity: Our malt crusher’s hopper boasts a 1.06 gal capacity and can hold up to 11 lbs grains of each time, largely improving productivity. 2 Grinding Methods: The grain crusher can be installed with a crank handle for manual grinding or with a corded electric drill(not included) for fast grinding to meet your different needs. Simple Operation: After installation of the grain grinder, you just need to pour grains into the hopper and start to roll the handle to grind the grains. The crankshaft can be driven clockwise and counterclockwise without affecting grinding.