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)

Less than 10 seconds into my first cut with pine plywood and it snapped in half. Very poor product

I use it for routing 3/16 beadboard. Waaay better than the formica bit I was using.

works great.. and very durable..

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.

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

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.

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)

Great bit for the first two minutes then it snapped in half.

First cut I used it was amazing, then when I did my second cut the end of it heated up, Im not sure if it was a bearing or not as it doesnt spin now and not sure if it did before, but it discolored the bit. Im really sad about it because my first cut went so well. Also I was cutting 3/4 mdf applying very little pressure to the bit trying to let it do all the work

I was excited to use this router bit. Unfortunately it broke after cutting about 10” of wood. I was cutting out a pattern in soft 1/2” plywood and the bearings flew off. This damaged my template and the piece I was cutting. Not sure what holds the bearings on but I found them on floor on a pile of sawdust. Very glad they didn’t fly off and hit me.