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)

It broke the first time I used it.

The bit cuts well and leaves a smooth surface ,

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

No a good quality at all really bad I work on a carpentry shop building fine furniture and we used a router every single day this one so far has been the worst

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 the perfect bit for my job. Cut out 10 window openings and it’s just getting started.

I needed a small diameter router bit for trimming 1/2 plywood. This product is fabulously sharp and very easy to use. Highly recommended!

Purchased 2 bits to router out Corn Holes. The first bit didnt even make a full circle and snapped in 2 pieces. The 2nd bit made the first hole, and I started the 2nd hole and it snapped. These are complete garbage, their durability is complete junk.

Whiteside quality at half the price

Clean cuts, flush trims