1/4 in. Shank Rabbeting Bit Set | Rockler Woodworking and Hardware
1/2" Height with 6 Bearings Rabbet Router Bit & Bearing Set - 1/4" Shank - Yonic 722544433747 | eBay
Wolfride 1/4 Inch Shank Rabbeting Router Bit Rabbet Router Bit with One Set of Bearing | 1/8", 1/4", 5/16", 3/8", 7/16", 1/2" : Amazon.ca: Tools & Home Improvement
Rabbeting Router Bits - Depth of Rabbet 3/8, 1/2 and 3/4 Inch | ToolsToday.com