CMT 835.501.11 Variable Depth From 1/8-Inch to 1/2-Inch, 1/2-Inch Cutting Height, 1/2-Inch Shank Rabbeting Router Bit Set Cutting depth 1/8 to 1/2-Inch by replacing bearing, 1-3/8-Inch Diameter & 3/4-Inch Cutting Length. For rabbeting of different size on wood and wood composites. Anti-kickback design. 2 SinterHip Hi-Density Industrial Chrome Carbide for long-lasting performance. Bit, bearings and hex key are included.