Steel-cut oats (US), also called pinhead oats, coarse oatmeal (UK), or Irish oatmeal, are groats of whole oats which have been chopped into two or three pinhead-sized pieces. The pieces can then be sold, or processed further to make rolled oat flakes, of smaller size than flakes of whole groats. Steel-cutting produces oatmeal with a chewier and coarser texture than other processes.