Amana Tool 47100 Flush Trim with Ball Bearing Guide 3/8-Inch Diameter by 1-Inch Cutting Height by 1/4-Inch Shank Carbide Tipped Router Bit - Walmart.com
10pcs Router Bits Top Mounted Ball Bearings Guide For Router Bit Bearing Repair | eBay
How to change the guide bearing on a router cutter
Leman 4258.702.00 Carbide-Tipped Router Bit with Ball Bearing Guide, Blue, 4258.705.00 - Amazon.com
47224-S Miniature Flush Trim Plunge Template 1/4 Dia x 1/4 x 1/4 Inch Shank Carbide Tipped Router Bit with Mini 1/4 Dia Upper Ball Bearing