Diameter of protractor: 80mm
Length of free shank: 120mm
Diameter of protractor: 120mm
Length of free shank: 150mm
Diameter of protractor: 150mm
Length of free shank: 200mm
Diameter of protractor: 200mm
Length of free shank: 300mm
Diameter of protractor: 250mm
Length of free shank: 500mm