Genmitsu 1/4 inch schacht 5 stuks carbide spiraal O flute up & down cut compressie eindmolen CNC Router Bits, Nano Blue Coat CNC snijfrees voor hout, acryl, pvc, PCB MDF, OC05B

I don't always look for the features of an up & down cut router bit, but what it can offer is appealing, clean top and bottom cuts, and who isn't open to that? Always like to have on hand decent bits and their nano blue coating make them pretty as well. My hands are small so you can see how small the bits are and each comes in intelligent individualized containers with sizes, like that part as even if separated in tool box, you always know the right size of what you are reaching for.

I've only run one project so far with these bits but so far I'm happy with their performance. The project amounted to around an hour worth of cutting and the bit showed no signs of dulling or burning which is better than what I am getting from standard two flute carbides I normally use so these are already a plus for me.

The per-bit cost here is just over $10, so these are a really good deal. I got them to use with my TwoTrees TTC450, mainly to use with materials like carbon fiber, aluminum, and wood. They arrived in one piece and packaged well. The bit info is marked on the bit containers, but not on the bits themselves. I very much prefer to see the bit info laser-etched onto the bit, in case things get mixed up. As I tend to do, being not particularly organized. Overall, though, they're wickedly sharp and a good value.

Carbide tools are great. Costly at one time but even then probably work the money. If you’ve ever burned up a steel tool you know how valuable carbide is. These bits are sharp and probably will stay sharp for a long time. I tested one on 1/8” mild steel. They worked great and left a great finish.

just love these imported bits... they seem to replicate much of what you see in the big name bits, but obviously at a more affordable price. If you want NASA precision stick to the brand names, but for the rest of us, these bits perform incredibly well. Another reviewer noted slight size variances. but this can be accounted for in your cnc if that level of accuracy is required.... overall, they cut great, do not over heat and seem to have great life span so far... 4.5 stars, recommended