Whiteside Router Bits RU2075 Standard Spiral Bit with Up Cut Solid Carbide 1/4-Inch Cutting Diameter and 3/4-Inch Cutting Length - Up Spiral Router Bits - Amazon.com
51511-5 5 Pack Solid Carbide CNC Spiral 'O' Single Flute, Plastic Cutting 1/8 Dia x 1/2 x 1/4 Shank x 2 Inch Long Down-Cut Router Bit
1/4'' Shank Spiral End Mill Left/Right Hand CNC Router Bit Single/Double Flute | eBay
Router Bits Spiral Trimming Cutter Heads With Storage Box For Cutting For | eBay
DIABLO 1/4 in. x 1 in. Carbide Up Spiral Router Bit DR75102 - The Home Depot
Yakamoz 10-Pack 1/8" Shank Spiral Router Bit Single Flute Flat Head CNC End Mill Bits 2/3" Cutting Length for PCB PVC Wood Acrylic Aluminum - - Amazon.com
Bosch 1/4-in Solid Carbide Downcut Spiral Router Bit in the Straight & Mortising Router Bits department at Lowes.com
Amana Tool Foam Cutting CNC Router Bits
DIABLO 1/2 in. Up Spiral Router Bit DR75108 - The Home Depot