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 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.

This bit works amazingly! First use was to cut some kayak hatch holes, this bit sliced through the plastic smoothly and had no chatter just a clean easy to guide cut. Ive also used it on some wood projects and it performs equally well leaving clean smooth cuts that need almost no sanding. Its also very sharp you can feel the cutting edge on the bit so be careful taking it out of the protective case. Im very happy with the performance so far and will be ordering more for my wodshop.

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!

I like the way it cuts

I had two of em and they broke very easily

Great router bit did everything I expected plus more

Snapped in half after 1st use

Been using it to route tabs off CNC cutouts and works great for that purpose.

I broke the first bit that was sent to me, but its because I didnt understand exactly what part of the bit could actually cut. At the top of the bit (the end that connects to the router), its solid cylindrical metal until you get to the point where the spiral groove starts to be cut into the shaft. That area cannot cut through the wood. Its not until you get a little further toward the bearing end that you get to the actually cutting area of the bit. I didnt realize this and was trying to cut plywood partially with that non-cutting area. It took a lot of force and ultimately the bit broke. Now that I understand, my replacement bit is working great. Ive seen a couple people complain about breaking bits, and I have to wonder if they did the same thing I did. Prior to this bit, I was using a 1/2 straight bit. It did the job, but it was a lot more work pushing it through, and the resulting cut was kind of rough. Needed a good deal of sanding. With this spiral bit, the cut is smooth as glass.

This was a great bit for a time sensitive project but buyer beware the ring the holds the 2 top bearings on is only a press fit. with that being sad you can imagine the small ring will eventually come loose. The press fit is not tight and after a 5 mins of use the ring flew off and the bearings came loose. thankfully I caught this before it ruined the piece I wasnt working on or this review would be alot more negative. I knew this upon inspection of the bit when I received it but I didnt have many options so I gave it try. the bit is VERY sharp and cut through the materials with ease but I dont know how long this will stay sharp. all in all good priced product but again you get what you pay for.