This ebay Buy-It-Now offering provides ONE PAIR OF IM31407 hammer pins as the above shown parts PLUS ME7B23J o'ring seal to field repair your Snap on IM31 3/8" drive impact and or IM32 3/8" butterfly impact wrench. The hammer pin now Snap on obsolete as well as the ME7B23J o'ring is no longer available or listed from Snap on.

The shipping weight is 4 ounces with USPS Ground Advantage...the slowest and cheapest shipping service available.  International buyers have this item shipped to Glendale Heights, Illinois for additional processing costs through the eBay Global Shipping Program.