CMT 890.507.11 Horizontal Raised Panel Bit, 1/2-Shank, 3-1/2-Inch Diameter, Carbide-Tipped 19/32-Inch Cutting Length, Board Thickness from 23/32 to 25/32-Inch, 2-35/64-Inch Length Great for making classic raised panel doors To be used in router tables (3-5 passes) Non-Stick Orange Shield Coating, Anti-Kickback Design, Equipped with Bearing 2 SinterHip Hi-Density Industrial Chrome Carbide cutting edges for long-lasting performance CMT bits were rated the best overall in comparison to other brand (Test by Wood Magazine)