RC-2250 Insert Carbide Mini Spoilboard Surfacing, Rabbeting, Flycutter, Slab Leveler & Surface Planer 2+2 Flute Design 1-1/2 Dia x 1/2 x 1/2 Inch Shank Router Bit
Mini insert carbide spoilboard surfacing & rabbeting with scorer, great for cutting tight corners. Features unique 2+2 insert 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. Great for surface planing.
Also suitable for router sled machines, Make sure that your router sled is fully stable and squared.
*For optimal results and maximum insert life, replace inserts with optional general purpose knives #AMA-12 and #RCK-70 (sold separately).
These industrial router bits feature solid carbide insert knives with four cutting edges that allow users to rotate the knife when one side becomes dull providing the highest-quality finish available on woodworking tools.
Recommendations: For surfacing solid woods it is recommended to remove both bottom scorers.
Proper torques rating to tighten down screws is 2-3Nm Torques.
I have used this bit to flatten large white oak slabs 32” x 11’. It works great with a heavy duty router. I built a carriage for the router that rides on home-made rails, a set of rails for the carriage sliding over a second set of perpendicular rails. The rails define a plane for the router bit to flatten these large slabs. Carbon cutters last well, with edge rotation after about 2 hours continuous of cutting. Works best with no more than 1/8” depth of cut per pass.