HQMaster Spiral Router Bits Down Cut 1/4 inch Shank Solid Carbide Nano Blue Coated Spiral Downcut CNC Bits End Mill for Wood Cut Carving Engraver (1/8 Cutting Diameter)

Ive been using this bit in my wooden sign making business and so far it works great and has remained sharp. Ive used it for 3d roughing passes in hardwood and in other applications where a ballnose bit is useful. So far, I havent noticed much difference in the quality of cuts from my more expensive bits. Its amazing to me that you can get quality tooling these days at this price point. These bits would make a great go to bit for production without having to stop to resharpen tooling. I would definitely recommend, and will order more!

This is a great end mill for doing 3d cutting. Makes nice clean cuts leaving a nice finish. The price makes this even a better value. Time will tell but so far this has been my goto bit for 3d cuts. Comes packaged well and arrived quickly. I will buy more of these bits

I bought the 1/8” cutting diameter bit, and used it with my router and DIY circle jig to cut a perfect, 11” diameter circle in 1/2” plywood. The down cut left no splinters on the top side of the plywood, and very few on the bottom side. I do not know how long it will last, but it worked very well on its maiden voyage.

This is an excellent bit that will help you to get the cnc results your after time and time again! Pros: 1. Excellent engineering minimizes chance of shearing 2. Bluing helps with rigidity and overall performance 3. Reasonably priced 4. Durable and long-lasting bit Cons: 1. The bit doesnt come with any markings, making identification more difficult when not in its case.

TLDR: Duller than a bus trip to Branson. I Picked this downward-cutting end mill for some prototype packaging I wanted to develop using standard EVA foam. This endmill cut beautifully at 10K RPM for about ten pieces and then quickly began to dull. The CNC would continue to push the cutter through the foam, but the material would just flex and compress until the cutter passed leaving an inconsistent and wavy finish. This must be the lowest quality carbide they could source. I had to double-check the listing to ensure I didnt buy an HSS end mill by mistake. I am going to try to cut some aluminum or other harder material just to see if the other reviews for this product are fake. Id be shocked if it even cuts a chip given how poorly it wore doing something as simple as cutting foam.

Nice carbide router bit, leaves a great finish on all wood types. Stays sharp and cuts very well.

Tested in mild steel. The cut was very smooth as the bit is very sharp. Should work well in many materials. After testing I used a 1/8 drill to check the size. The naked eye said it was a little large. Was it runout from my setup ? Bent bit ? Manufacturing defect? I checked with a micrometer and found the bit measured .126 Probably not a really big deal in most cases. I will call it a quality control issue. Or maybe when these are sent to us vine reviewers we get the ones that didn’t pass quality control. Might just be the perfect size for some project.

This cutter is dimensionally accurate according to my caliper. That is good as sometimes 6mm shank are sold as 1/4 (6.35mm). Under magnification the ball end is smooth without burrs. It is only 2-flute so I wouldnt try to cut metal with it but wood and plastic should be fine.

Item reviewed: HQMaster CNC Router Bits 1/4 inch Shank Ball Nose End Mill with Nano Blue Coating Spiral CNC Bits for Wood Cut Carving Engraver Side Milling End Milling Finish Machining (1/8 Cutting Dia.) This is a nice bit a a reasonable price. I prefer when smaller tip bits have a good 1/4 inch shaft at the top as this one does. Seems to me that gives it a better chance of survival in the CNC jungle. I havent figured out my long term bit storage solution, so for now most bits stay in whatever storage solution they come with. This one gets extra points for having a nice plastic case (similar to many other bit cases) with large clear lettering identifying the bit (not so common). Highly Recommend

Good bit, does what I need it to do and worth the price, will buy more in the future.