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)

I used this bit to trim 3/8 drywall around a door. It cut 4 ft of drywall then the bit broke in the center of the shaft. I didnt expect it to be ultra-durable, but this is terrible. Not worth the risk of the bit exploding during light use.

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

I purchased 2 router bits of this item for cutting letters w/ soft aluminum sheet. But theyve been all gone (Broken) even though I put 1 level below from max. speed of the router DeWALT and cutting slower.

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

Clean cuts, flush trims

Great product

Perfect for what I needed. Cut was clean.

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.

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.

Got the bit to route off the bullnose off stairs for hardwood install instead of cutting. The bit proved useless in that as it could not handle the 1 oak boards and just would not cut it. If you planning on making thick templates or routing hardwood look for something else.