Hand Operated Corn Grain Mill Grinder Useful Kitchen Tool with Big Hopper – Adjustable for Corn, Coffee. Food, Wheat, Oats, Nut, Herbs, Spices, Seeds Grinder – Great for Restaurants, Commercial Kitchens, Bakery, Home Cook. 3.8 out of 5 stars 145. $40.99 $ 40. 99. Get it as soon as Fri, Oct 30.