Spiral Flush-Trim Router Bits，Solid Carbide Flush Trim Router Bit 1/4-Inch Shank Spiral Flush Trim Up Cut from TACKPRO (1/4 Shank Up-Cut)

Bit snapped first time using it. Wasnt even going through material fast, it just snapped. Save your money and look somewhere else.

This is a great bit. I got it to trim aluminum siding on a homemade teardrop trailer. It started out a breeze easily cutting through the aluminum... for about 3ft, then it started having all kinds of trouble. I about gave up on it but tried a few drops of cutting oil. Magic! For cutting aluminum use cutting oil often. Cuts like butter. I probably cut about 100linear feet so far. (I assume people who work with metal and routers already know this. I didn’t)

Cut 3/4 mdf no problem

Lasted about 30seconds cutting big box store birch.

I was having trouble with my flush trim bit. The detail I was trying to create was somewhat delicate and my bit kept ripping up the edge. This bit left a perfect edge and gave me a much nicer cut. The price was good too. I’m very happy with this bit and would recommend it.

You will be lucky if you can get through your first cut without the bearing spinning off and ruining your work.Avoid like the plague.$65 down the tube.They have a nerve selling this crap.

Used it to cut plywood out in window opening made it 2 inches snapped but it was a quick 2 inches. Disappointed to say the least.

These bits are very nice and work perfectly. I like.

I have already used the hell out of this little jewel! If you are cutting out patterns and going against the grain in corners and on protruding edges, this jem really reduces catching on end grain and chipping out. Priceless addition if you do alot of cutouts for inlay work!

Works great