This Robert Sorby internal shear scraper cutter is set to an angle of 45° to get a good shear cut. This type of cut is less aggressive and leaves a finish that requires little to no sanding. It is an excellent choice for internal work such as goblets, bowls and other internal projects. Sharpening is done on a diamond file or honing stone, honing the top face of the cutter. Regular honing will maintain the cutters edge, and extend its useable life.