It's used to cleanly cut the bottom interior of a bowl in 3 to 6 cuts if your tool skills are up to snuff. It doesn't see a lot of use per project, thus the short flute length. The 3/4 steel shaft is meant to resist or deal with deflection / vibration issues when extended out over the tool rest.
The heavy 20 lead shot filled handle really helps dampen down the vibration problems. This is a rare find. Please see the pictures for more info, and condition.
The item "Jerry Glaser 3/4 A11 Bottom Bowl Gouge Wood Lathe Chisel Woodturning Tools" is in sale since Tuesday, April 9, 2019. This item is in the category "Crafts\Home Arts & Crafts\Woodworking\Wood Turning Hand Tools". The seller is "tomcat90501" and is located in Torrance, California. This item can be shipped to United States.