This block plane is 6 inches long and has a blade that is 1 5/8” wide. It is identical to the No 9 1/2, but lacks the throat adjustment. Still, with its fixed mouth, it is a great plane for doing quick work in the shop and house. It is also a good tool for the younger hands of kids. This one has much of its original finishes, and needs just a light cleaning to go to work. Fine.