CMT 890.601.11 Vertical Raised Panel Bit, 1-1/2-Inch Diameter, 1/2-Inch Shank 1-1/2-Inch Cutting Length, Board Thickness from 19/32 to 23/32-Inch, 3-Inch Overall Length. Mill raised panel doors and drawer fronts easily and economically. 2 SinterHip Hi-Density Industrial Chrome Carbide cutting edges for long-lasting performance. Anti-kickback design to control the depth of cut and work safely. CMT bits were rated the best overall in comparison to other brand (Test by Wood Magazine).