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)

Terrible product and broke the first time I used it. Reached out to the seller and the offered to replace it, then gave me the run around for a week and now they say that they can’t send me a new one. Stay away from this poor crappy product

I bought two bits as replacements and a couple minutes into using it the clamp above the bearings and one of the bearings flies off! I was lucky enough to find both pieces and it was easy enough to put back together (which is telling) only for it to happen two more times, resulting in loss off parts. So, basically I spent $21 for three minutes of work, plus associated anger and disappointment.

works great.. and very durable..

Clean cut. Good tool

Best flush cut bit ever. Smooth, clean and NO chatter. Go up cut spiral for best results.

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.

I ordered this bit in hopes it would give me a nice clean cut with my router table. First one spun the bearing off within the first two minutes of use. I ordered a replacement and the second one snapped in half and flew across the shop after trimming about 4 of 1/4 acrylic sheet. Avoid this one

Product broke during first use

Cuts through wood like butter and is not that expensive.

This was my first spiral flush trim bit and am very impressed. It seems to cut so much faster and cleaner that the 2 flute bits I have been using for MDF guitar templates. For the price, its a no brainer buy.