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 (Carbide Tipped)

my brother told me to try it out after looking at bits in the $70 range I figured for the price it would be junk but was really surprised. I worked over a piece of maple going 1/4" deep on both sides and it seemed to work great, left decent ridges but they sanded out easy with 50grit on a belt sander.

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 .

Flattened a whole 1.5 m × 1.5 m slab of hardwood; did a decent job, but there are some tear-ups.

I am very surprised how well this cuts. I have leveled about 20 board feet of red oak so far and it's still sharp. Money well spent, I will buy again when this gets dull.

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.

Plus it ran through a cut nail or two and showed no signs of damage. I flattened some oak planks that are 75 years old. I know becasue the man that put them up wrote the date on them. He put them up green and they cupped something terrible and twisted too. They are 11 inches wide by 60 inches long and 2 1/2 inches thick. I'll only be able to get about 2 inches of thickness out of them but it was easier with the router than trying to do it by hand with a scrub plane, and cheaper than trying to find a mill to basically risk damaging their equipment on the beat up old planks.

Excelente llegó en buen estado y en el tiempo esperado, llegó hasta Colombia!

I've used this bit and few times now on an epoxy project and a piece of ironwood and it seems to be holding up great! I get just a little bit of swirling in the epoxy flattening but that may be my own error in going too fast. I'm happy with the purchase.

Buen producto, cumple con especificaciones. Aun no lo he usado pero a la inspección se ve bien.

It was good for one slab. Get blunt after that.

Works great. With a homemade sled it took less than a minute to flatten a guitar body flat ready for a cap to be glued on

Not good buy

I recommend. Very nice cuts and well balanced.