Used in John Deere combine harvesters (950, 952, 955, 960, 965H, 968H, 970, 1032, 1042, 1052, 1055, 1065, 1068H, 1133, 1144, 1155, 1157, 1158, 1165, 1166, ..., 3300) as a spare part of threshing drum to extract the grain from the spike during threshing.