Hole and Flush Cut | 1/4 Dia x 1/4 x 1/4 Inch Shank
DIABLO 25/64 in. Carbide Specialty Key Hole Bit DR70104 - The Home Depot
Festool Through-Hole Shelf Pin Router Bit for LR 32, 5mm Dia. (491064) - Rockler
MLCS Key Hole Router Bits | Hang a DIY Wood Picture Frame
Router Bit Woodworking Square Hole Drill Hollow Square Hole Saw Power Tool Accessories Multiple Sizes Available Hand Tools - Power Tool Accessories - AliExpress
Saipe 5pcs T-Slot Cutter Router Bit 1/4 Inch Shank Keyhole Router Bit Set with 1/4 & 5/16 & 3/8 & 1/2 & 9/16 Inch Blade Diameter for Wood Hex Bolt T-Track Slotting
Mr. Fence - EZ Hole Router Bit™ – Fence Armor
25/64'' Freud 70-104 Key Hole Router Bit | Rockler Woodworking and Hardware