Quality new ST 350-19 splaying clincher made in the United States out of heat treated hardened tool steel similar to the original tool made by Chicago Rivet but unlike Chicago ours comes with a protective black oxide finish. This clincher will work well in the original ST 350 Chicago Rivet press made for Lionel in the blue or red model, the older cast iron Hobby Horse green press and the blue Lionel press made by Hobby Horse in the early 1990's. Tool will also work with current production Hobby Horse Rivet press made out of aluminum and other type presses that have been modified to accept this tool. Block shown in picture does not come with the tool. For your convenience domestic shipping is included in your purchase price. Thank you for looking.