Trend Professional Ovolo Jointer & Scriber Cutters 34.9mm Diameter x 25.6mm Cut x 9.5mm Radius x 8mm Shank 25/5X8MMTC - Octacut - Eight Shapes in One Key Features: These 'Eight in One' Cutters sets have been designed to cut eight different profiles Can be used portably or in a router table Use B2 for a 1.6mm quirk and B3 for a round over Specification: D: 34.9 mm (metric diameter) C: 1 inch (imperial cut length) C: 25.5 mm (metric cut length) B: 9.5 mm (metric bearing diameter) B2: 12.7 mm (metric bearing diameter) B3: 16 mm (metric bearing diameter) R: 9.5 mm (metric radius) OL: 80 mm (overall length) Shank Diameter: 8 mm Timber thickness min: 11 mm