3/4 inch (20mm) Radius Brazed Diamond Router Bit 1/2 inch Shank China - Export ,Sale , Manufacturer China,factory,manufacturer - Guangzhou Yulin Leading Co., Ltd.
SHDIATOOL 1/2 Inch Shank Full Bullnose Profile Wheel Diamond Router Bit 20MM Radius Edge-Forming Marble Granite Quartz Stone - Amazon.com
Draper 75339 1/4-inch Beading 38 x 20mm Tungsten Crabide Tip Router Bit : Amazon.co.uk: DIY & Tools
Titman Rounding over bit R20 - JVL-Europe
HURRICANE ROUTER BIT – 20MM RADIUS 3/8 – Pacific Enterprise Inc.