A smaller version of the popular 100mm O'Donnell jaws. Three gripping features are provided, a dovetail for gripping onto a 36.5mm external diameter, another for opening into a 50mm recess and a parallel central bore for gripping onto a 35mm diameter spigot. Recommended range: 27-51mm internal, 45-66mm external. Although designed to fit the 80mm chucks they will also fit the 100mm and 114mm versions.
N.B. The finish may be either silver or black due to changes in legislation regarding passive zinc plating.