The tools and stock for this post. 1/4x1.5 flat mild, 1" slot punch, and 1/2" round and 90 deg. punches
The holes laid out and punched with the 1" slot punch.
Using the hardy tool and 1/2" rounded punch to set down one side of the stock and then the other. The stock is forged down on one side, resulting in the end of the bar being distorted. But no worries, it will correct it's self when the stock is flipped over and the other side forged down
Stock forged down on both sides of the slot to allow 1/2" stock to pass through the flat stock. Note that forging the second side down corrected the crookedness of the end of the stock.
Using the same tools to set down the center first and then both sides (in the opposite directions of the first set down) to allow 1/2" round to pass through
The same procedure can be used with a 90 deg. punch to create a pass through for 1/2" square on the diamond.
The finished project with 1/2" round and 1/2" square passed through flat stock.