DIABLO 1/4 in. x 1 in. Carbide Up Spiral Router Bit

Cuts very well no issues with it so far.

Much superior to less expensive bits.

Cuts very nicely, and you can plunge cut, meaning you can start the cut in the middle of the piece. Produces a flat bottom.

Worked as expected.

I don’t have a drill press, so I used this for placing dowel pins. I made a zero clearance plate for my router so that the hole location was accurate. It worked great!

Works ok but doesn’t really pull the waste out of the wood.

Very sharp and cutting with it is very easy. The upward spiral clears out the material with ease.

This has upped my router game quite a bit with the ability to do engraving because it allows precision control, and also clean edges because it cuts consistently vs cheaper edge routing bits. Highly recommend, but you gotta watch out for any kickback that can break the bit. Work slowly and this will reward you.

I just cut a total of 366 lineal feet of 3/4″ deep groove on 4×4 Douglass fir. The bit is still going strong. Up spiral is great for smooth and clean cuts, however you may need to later use compressed air to blow the debris out of the groove. Excellent product.

This bit worked great for cutting into my hardwood floors to install an electrical outlet….you can always tell the quality that comes with Diablo….I hope they keep it.