21 in attached diagram. To see more tooling from Lost Creek Machine. Check out my other items. The item “Leblond Regal 13 Lathe Splined Double Gear” is in sale since Saturday, September 23, 2017. This item is in the category “Business & Industrial\Manufacturing & Metalworking\Metalworking Tooling\Equipment Specific Tooling\Lathe”. The seller is “lostcreekmachine” and is located in Ottawa, Illinois. This item can be shipped to United States, Canada.