1 X 5/16 45 Degree M42 (8%) Cobalt Single Angle Chamfer Cutter ~ Right Hand Cut ~ 45° Chamfer Angle ~ Shank diameter is 1/2″. ~ Overall length is 2-1/2″. ~ Use for chamfering and angle milling operations. Right Hand Cut Overall length is 2-1/2″. 45° Chamfer Angle Shank diameter is 1/2″.