Up Down Compression Spiral Flush Trim Router Bit, 1/4 Inch Shank Solid Carbide Flush Trim Router Bits CNC Spiral Bit with Nano Coating by EANOSIC

Hmm, well this has a good cutting edge, seems to make a perfect edge, no wobble in the bit and good longevity. Good buy when compared to the same bit I got from HD at a better price.

Having once snapped a premium 3/8 inch spiral on its second use, I’ve managed to suppress any interest in a long, tiny 1/4 inch one. The opportunity to test one through the Vine program overcame a couple of decades of reluctance, and, with less than an hours use, trepidation has transformed to enthusiasm. This is one useful bit. Not surprisingly, it allows me to enter smaller spaces for interior cuts, and to follow more finely detailed templates for external cuts than I could ever hope to achieve with a larger bit. The up/ down spiral does indeed leave a far smoother finish—top, bottom, and in between—than I can achieve with my straight bits. I have used it only for light, slow cuts with the same knowledge “Amazon Customer” shared in his/her January 9th review, which I recommend reading. As others, I still worry the 1/4 bearing is going to hold up. I wish they had included 3-4 replacements with the bit. Time will tell if my concern is warranted, but over that time I’ll be checking often to ensure the bearing rotates smoothly.. I won’t be using this bit often, so it may be some time before I can report on actual bearing life. For now, I can only affirm others in their praise for this bit. It is well worth its modest price,

I am giving this particular bit 3 stars, because it could have been a rare manufacturing flaw. I used it on a 1 inch cherry wood removing about 1 to 2 mm, and after about 5 minutes and 2 feet it fell apart. Luckily I had an upcut bit by the same manufacturer that I used to finish the work. The other bit performed perfectly.

This is my second bit from Eanosic and just like my first one I am happy with it. It comes in a nice case for protection, and it is very sharp. It cuts material cleanly and the up down compression leaves nice edges on both the top and bottom as long as you set the bit up correctly. It is not meant to take much material off so you will need to use a bandsaw or jigsaw to cut away most of the material first. I only use it for pattern routing which is what it is meant for. Pay attention to the size of the material you are using because you may need to get a larger bit. I am using it for 3/4 material and it works great. Very happy with this bit.

I have a triple fluted flush cut 1/4 inch router bit that I usually use in my construction business. I have never used a spiraled flush cut bit, so I thought it might be fun to try out. I used this spiraled flush cut bit it my trim router at first and the bit had no problems cutting 3/4 pine trim boards. However, I did notice that the cut was a little wavy because the trim router has a small base plate so I tried it in my full sized router with a 5ish plate. The cut came out much straighter and I would recommend using a bigger base plate for it unless it doesnt matter if there are a few waves in the cut. It cut through 5/8ths OSB plywood and didnt leave any burrs on the surface. There were some on the bottom of the plywood but I assume that is from the spiral moving downward. I like the fact that the bit is only 1/4 in diameter the whole length and that it doesnt have to take out as much material as my 1/4 fluted bit that is 1/2 at the cutting blades. So far... I really like this bit and am hoping that it stays sharp for a long time so I can use it for many years.

This is well made, every bit as good as the more expensive Freud and Rockler bits I own. It comes in its own plastic case that closely matches the size of the bit for easy storage. It may seem trivial, but I store my bits in their original packaging, and the cases on Freud bits huge, so much bigger than the bit they hold, this case is perfect for how I like to store my bits. I haven’t used it enough to speak on its long term durability yet, but there are no red flags yet as far as the cut quality or craftsmanship is concerned. Recommended.

I have a 1/2 up cut flush trim bit but need something smaller for a tight inside corner. I expected this bit to produce about the same quality cut as my bigger, premium bit. This bit cuts better! The up/down compression really eliminates tear out on both the top and the bottom of the work piece. While I have not used this bit enough to rate its durability, I will be grabbing this before my other bit next time I need to flush trim a piece.

I used this bit for the first time to clean up the edges of a CNC carving. I purposely cut too shallow with the CNC into a piece of walnut, then cut the carving out with a jab saw. This to me provided the worst possible scenario I could come up with regarding the wood. Hard wood with jagged overhangs that have been stressed already, and a curved edge. As for the router, I used a cordless handheld DeWalt 1/4 in router. Its large in the hand so kinda hard to hold and it is easier to accidentally tilt than a larger router. Then I flushed the corners holding the router in one hand and the carving in the other. This was the worst possible scenario I was willing to tolerate. I got the best results I have ever gotten from any flush trim bit - with the worst conditions I could come up with. There was zero tearout, and perfect alignment. Look at the pictures, they speak for themselves. I hate to write gushing reviews, but this is a standout tool that radically outperforms every other version of the tool I have ever used. Cant recommend this bit highly enough.

Sharp and leave a good top and bottom finish. I have had no problems with bits from this company. easy to use.

It cut 3/4” plywood like it was butter. Make sure the guide board is secure and long enough and dont try to handle it without one. If the wood is hard, the router will pull away from you and slice quickly into places you dont want to cut. I made that mistake trying to finish the last inch to the corner of the work table I was trying to give a straighter edge. Instead it pulled itself out of my control just long enough to make a deep gouge before I could pull it away. I just didnt expect it to cut so well. But the reason I tried it first on that was because I didnt really care much about damage, since its just a work surface that will get beat up anyway, so no big deal and it kept me from making that mistake on the shelves I was making. Not sure about how long it will last, but at least new its pretty good for the price.