Kevin O'Connor - It's official, there's a tool for every job! An angled router with a beveled plate to make channels for weatherstripping on doors. Run it at the corner of the
Corner Rounding Router Bit Amana 49514 - 3/8 Radius Tool
Amana Tool - 49516 Carbide Tipped Corner Round 1/2 Radius x 1-1/2 Dia x 3/4 x 1/4" Sha - Edge Treatment And Grooving Router Bits - Amazon.com
7 Trim Router Tips | Popular Woodworking
Weatherseals for Windows and Doors
Weatherseals for Windows and Doors
4 Pcs Round Over Bearing Edging Router Bits, Corner Rounding Edge-forming Bit Set, Roundover Beading Router Bit Set, 1/4 Inch Shank Woodworking Milling Cutter Tools | 1/8", 1/4", 3/8", 1/2" Radius - Amazon.com