The CNC insert spoilboard industrial router bits with scorers features a unique 2+2 knife design that contains two cutting flutes and two up-shear scorers, which provide a smoother finish at the bottom of the cut than traditional two-knife style router bits. Cutting applications include spoilboard, planing and rabbeting large surface areas in MDF, Balsa Core, hardwood, softwood and all man-made materials. These spoilboard bits were engineered with an Amana-exclusive carbide grade for the highest quality of cut, maximum cutting efficiency, faster material removal process and longest tool life.

The industrial router bit features insert knives with four cutting edges that allow users to flip the knife over when one side becomes dull and is available in 3/4" shank size with the highest-quality finish available on woodworking tools. 

Cutting applications include spoilboard, planning and rabbeting large surface areas in HDF, MDF, LDF, Balsa Core, hardwood, softwood and all man-made materials.