10Pcs 0.6mm Carbide End Mill Engraving Milling Cutter CNC Router Bits for PCB Machine, 1/8" Shank

I use these for making 1-off PCB's, and they do a great job. I can drill and mill with this bit, and each bit lasts me about 2 square feet of facing on average. I always have a couple sets on hand. I've used other brands and types, but you can't beat these for the money.

First off, they are a little fragile in the sense that you have to pay attention to what you're doing (mind your plunge rates and feed speeds). I did break a few but it was my fault. When used properly, they hold up great. Once dialed in, I have yet to have one fail in operation (2+ hour runs). These have been great for etching PC boards. I haven't used them for anything else but for PCBs, they have changed the game for me. I have pretty much shelved my ferric chloride for good!

These bits are great for inlay work. I've used on hardwood and mother-of-pearl. I use them on my cnc and slow feed rates and light cuts gave great results.

I bought these to cut fret slots with my CNC machine. I was nervous about the small diameter. But, I was very pleased with the results. 12k RPM at 60in/m with a depth per pass of .005 was a successful combination. My machine cut 42 slots in ~26m. The slots were very clean and only required light surface sanding. Highly recommended.

I expected these to be super fragile with them being so tiny but I do a lot of detailed work and i thought the price is great, so I can afford to break a few. With a collet reducer these fit perfect and if you go slow and hold the router right, haven't broke one yet.. I'm so impressed.

Good quality !

Purchased to engrave small letters 1.2mm deep in Birch plywood using my Desktop 3040T CNC, instead of using a v-bit. Did the job required, with clean precise cuts.Would by more, but 10 looks like a lifetime supply, unless I need to use them in Aluminum.

I ordered these to cut slots in a mandolin fret board. The price was significantly less than cutters offered by specialized suppliers. Coming in packs of 10, I expected to perhaps break a few to writing off the entire purchase as a bad experience. Well, one bit completed 28 slots without fail and with every expectation they'll continue cutting.Cut details are; 24000 rpm, 5 ipm, 0.007" cut depth per pass. Total cut depth is 0.080". Material is walnut.