joel moskowitz
thanks - it's pretty consistent with the smaller sizes - and 11/16 is pretty hefty too. These tools are all considerably thicker than wider. Size for size they are slightly lighter than mid-19th century mortise chisels but I don't know if that is a given or just a function of the particular set and grade of the set in the Seaton Chest. a 1" deep mortise does make a good demo - but going deeper is not a big deal. I think you are used to the tool you are used to, they work well for you. I was taught differently and I can make my tools work well for me. Neither version, Modern or Seaton mortise chisel is as light duty as your average sash mortise chisel, and neither has a giant handle like the European HD sash mortise chisel.