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Looks like a GS chuck too... I'd like to see the next page but we are in snowfall self lockdown here, plus, @Chicken lights didn't bring enough flyers for us all to look at. Some ppl are just so selfish eh:D

I didn't know tier 3 Amazon would cut them in half for a half price sale, guess that would mean we would only be getting 4% cobalt.:)

After using a nice sharp chisel to get them flush with the table, he would have loads of Christmas trees to give away. Although, they sound like a good idea really.

Thanks for letting us know. Have several projects coming up in the next couple of months, some of which, will need outsourcing. Automation cells in particular. PTP should be completed mid February, early march for design approval. These cells will be piercing, drilling, tapping units. Would be...

With only 5% cobalt.. That price is much more than I would pay as well, even if they through in free shipping. I think amazon would be your best bet as well, with 8% cobalt for less $$.

Ok, I will have a looksee for a 4 flute straight helical endmill without coating. What grade carbide endmill would you suggest ? Nano, ultrafine or submicron, or would it matter, as long as I'm using coolant ? I like to see a .02-.025 chip load in 6000 series AL - on a manual miller...

Sounds good. I will try your best solution in Aluminum. What type or uncoated carbide endmills are you using? How many flutes? Helical ? Variable flute?

This is where advanced coatings along with Exocarb come into the equation. I've left machine's running finishing toolpaths in 3D overnight. Hardened A2/ D2 with a 2flute 1/2 ball nose. Using a .012 stepover with a uniform .02 stock over the surface with air. No polishing required afterwards...

I suppose, they are much more advanced in the machining world?

We don't have any issues with heat build up when using carbide with air on the mills. With a good speed, feed and chip load, the heat is in the chip, not the tool or workpiece. If you are generating too much heat, the problem isn't with your tooling.