Trend Professional Solid Surface Router Cutters ​Bearing Guided Bullnose Round Over Combination Cutter Ref: 90/26X1/4TC - 8mm Radius Key Features: Especially designed for routing Corian, and similar luxury inchmarble like' material which is used in many bathrooms and kitchens For bullnose moulding use Ref. 90/25 inconjunction with Ref. 90/20 and Ref. 90/28 with Ref. 90/21 Specification: D: 27 mm (metric diameter) C: 12.5 mm (metric cut length) B: 12.7 mm (metric bearing diameter) R: 8 mm (radius) OL: 52 mm (overall length) Shank Diameter: 1/4 inch