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)

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

Sharp long lasting bit. We use them for cutting window and door openings out when framing. Used with a trim router. I havent used in my big router yet.

Works great

This trim router bit broke off in the collet of my router - the rotating bit went flying through my shop - thankfully, no one was hit by it as it is very, very sharp. Have been using routers in the shop for years, including flush trim router bits and have NEVER seen anything like that before. Not only low quality but very dangerous.

Product broke during first use

Perfect for what I needed. Cut was clean.

Bearings failed third time using it. Edit: Bit was replaced and no problems yet.

Works great on all plastics, we route many different plastics and this bit does it all!

This bit works great! Ive used it several times in a few different routers without any issues. This cuts super clean and makes end-grain routing so much less scary.

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)