CNC Spoilboard Surfacing Router Bits, 1/2 inch Shank 2 inch Cutting Diameter, Slab Flattening Router Bit Planing Bit Wood Milling Cutter Planer Woodworking Tool by BINSTAK (Carbide)

Flattened a 36" x 7' slab with this thing and it did an awesome job

I got this to flatten a workbench top . I glued 3 2"x 12"x 8' & sandwiched in 2 2"x 4"x 8' together & built a router sled to plane the top & bottom . This bit attached to a Hercules router worked well to remove & flatten the top . The remaining work was done by a palm sander in an attempt to remove what the router left behind . The router & bit did leave some somewhat questionable & unacceptable remnants .I'd have to say that the purchase of a 3 blade power planer would have made this a far better job as well as maybe using 2"x 3" or 2"x 4"s instead . As it ended up the thickness at the thinnest is less than 1 1/4" vs 1 3/8 . I ended up beefing up the underside with 3/4" plywood in preparation for bench dogs . So being this is a 6' L x 3'W x 38"H mobile workbench , I'm not losing any sleep over this besides the top & 2 shelves are painted a washed out satin yellow with flat black . Besides the fact that it's heavy I installed 4 3" corner mounted swivel wheels with 2 2" mid mounted swivel wheels , it's still got a mind of it's own when pulling it out & stowing it .Bottom line is the bit would probably be better suited in a professional made flattening system vs homemade one made out of plywood vs an MDF made one . So yes it works & I'll leave it at that .

Sharp right out of the box. Got this to use in a router jig for flattening boards and so far it is working good.

The 1/2 shank gives much better performance and smoother surfaces than the 1/4 shank tool I used before for the same applicaton. The larger cutting surfaces also "burn" less when machining large areas. It works well even on highly figured wood surfaces.

I have 3 of these now, I'm a snowbird so I have one in the north and 2 here in the south. I have tortured the one in the north flattening a lot of cherry and ash. A little touch up with a diamond stone to keep it sharp. I am impressed for the price that this has lasted through all I have put it through.

I have several wide (28"+) Walnut slabs I used to flatten these with a belt sander and manual planes. This bit provides a flat surface which requires only a little sanding to prep it for use. Using a 1.75 HP Porter-Cable router and monitoring the depth of cut leaves a flat slab quickly. Think 1/4 the time of flattening by hand. Based on the results with Walnut i fully expect that this bit will work equally on Cherry, Purpleheart, Oak, Birch, Maple and other commercially available hardwoods. I am not certain about Poplar. It tends to be a 'stringy' wood.My preference is to cut no deeper than 1/8". Similar to my Planer. The carbide cutters on this bit are visually the same as other router bits I own. Care must be used when using a flattening jig and bridge. Feed the router at a pace the bit wants to set. Do not stop in the middle of cuts in wood that is given to burning. Oak and Cherry are known for this.This is a good bit and it is priced to be disposable when dulled. It should be good for at least three of my slabs. 30" wide by 9.5' long.

This bit did a good job flattening slabs, but even with soft redwood it dulled rapidly. More expensive bits may last longer.

ok, great value compared to other popular