FivePears Up&Down Cut Compression Spiral Router Bit for CNC, 1/8 inch Cutting Diameter and 3/4 inch Cutting Length 1/4 in Shank Carbide End Mill Router Bit for Wood Carving Engraving Grinding Grooving

Sharp, introduced me to spiral cut bits, must have

I picked up this item not knowing much about it. I found out REAL quick it was not very durable. Within the first 5 minutes of using it it broke. I returned it to amazon and got a replacement. Well it wasn’t a fluke. The replacement did the same thing. Will not be buying another.

I have a Shapeoko 4 and am using this bit to cut 1/4 and thinner plywood in one pass. You want a compression bit to be engaging enough of the cutting surface that you get the benefit of an upcut for the underside and a downcut for the top surface resulting in a clean cut on both surfaces. It being 1/8 means I usually an doing a larger contour cut first to hog out material and then cleaning up with this, but it works well and is a more affordable option than some of the pricier bits.

Personally, I believe they are way better than the ones that cost twice the price!!!

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 wanted to make slotted holes in oak. These pieces were an inch thick and for holding a table top on. The bit cut clean, fast and held up for multiple holes. Ill be buying more from this company.

At this price level I havent been able to find anything that compares to the quality they provide. They are well packaged, hold an edge well and are my first choice when I need to replace a bit. Ive got the 1/4, 1/8, 1/16 and theyve all just been fantastic. Im a pretty new user in the CNC world and Im not always dialed in on my speeds and feeds and Ive found these to be very forgiving for me. Highly recommend!

Ordered three bits and had them delivered today. The solo compression arrived flawless. The two pack of 1/16th bits came with one bit having the top busted off. Not sure how to contact the seller, but if I can get resolution I will update this review

I got the 1/16 bits to try routing some freehand designs (no CNC) and they have worked beyond my expectations. Given the small bit size, I anticipated that they would have a relatively short working life. Ive used these bits on around 15 (each) projects for designs ranging from a few inches to a couple feet on a variety of materials (mostly red oak) and they still cut just as well as they did on day one with very little maintenance. I clean the bits after each use but they have needed no sharpening. I can only imagine how much better they would be in a CNC. Highly recommended.

used for my cnc router. good product