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 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.

It broke the first time I used it.

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

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.

was a little apprehensive on the 1/4 shank size -- had been using a 1/2 shank but it got $$$ -- this bit worked perfect in a template routing project to cut a hole in the middle of a 7/8 piece of walnut -- took a little longer but one side of the hole is only 1/2 from the edge i think the smaller bite of the bite is better -- will order more

You will be lucky if you can get through your first cut without the bearing spinning off and ruining your work.Avoid like the plague.$65 down the tube.They have a nerve selling this crap.

This bit works great! Ive used it several times in a few different routers without any issues. This cuts super clean and makes end-grain routing so much less scary.

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.

They hold up pretty well we use on mdf all day. Last about a month

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.