⚙️ High-Precision HUHAO Spiral Degree Engraving Aluminum: Stellar Quality and Precision for Engraving Projects Review

They're just ok. What I got is 60 degrees but not at all like the picture. They are short and without a spiral groove. Won't be buying from this seller again

I've used them several times on my CNC (6040 and mach3). I had no problems. They cut cleanly and neatly (no chips, burrs, etc.). I use them on relatively soft wood (pine) and get good results.

V bits are one of the cheapest types of CNC bits and because of their simplicity there are so many cheap options. I bought them because they were the only ones that actually had a groove for making clean cuts AND removing material. When they arrived they were better than the picture with a mirror finish even on the inside of the groove. Very well done and very hard. Started cutting and in love. No burr, no burning, no rattling. 10/10 bits.

These bits wear out after only a few uses. I've only cut jaws at very shallow depths at 20,000 rpm and after a few passes on my CNC router I noticed pitting on the cutting edges of the router leaving a very rough cut.

Under the microscope they looked fine at first - some cut edges were chipped but high enough for a 0.005 engraving to be ok. But after doing the job with conservative settings I see that they are pretty terrible. I get better results in bronze, copper, and silver with standard circuit board cutters that are half the price. They may be suitable for softer materials but overall I was very disappointed in them.

So far so good. But they need a little time to get to you. I etched acrylic with my mpcnc. They do an excellent job of removing waste so it doesn't build up in the melt. Although I'm using a 30,000 rpm router. Outstanding quality for the price. Update I was able to carve some acrylic night lights with these pieces and they worked great. Here are some photos. Everything is done with the same nozzle so that the acrylic does not stick together when cutting.