Trend Professional Ovolo & Rounding Over Cutters 23.7mm Diameter x 19mm Cut x 42mm Radius x 1/4" Shank 46/9/50X1/4TC - Bearing Guided Round Over Queen Anne Cutter Key Features: For window boards 25mm thick Two passes can create shallow nosings on table tops etc Specification: D: 15/16 inch (imperial diameter) D: 23.7 mm (metric diameter) C: 3/4 inch (imperial cut length) C: 19 mm (metric cut length) B: 12.7 mm (metric bearing diameter) R: 42 mm (metric radius) OL: 50.1 mm (overall length) Shank Diameter: 1/4 inch