Joe's 1000x600x200 steel and aluminium router started

[devmonkey]

I always find single flutes cut undersize. Never been sure it's a deflection or the tool. I always finish with a 2 flute and I also find HSS gives a better surface finish than carbide in aluminum for the finish passes.

I hardly use Single flute cutters anymore. My preferred method is 3 flute carbide rougher leaving 0.4mm then 1x semi-finish pass @0.3mm and a final 0.1mm final finish pass. For work that doesn't need the best surface finish and accuracy I just take the full 0.4mm as a finish pass.

Hi Jazz, what 3 flute rougher do you recommend? I was quite looking forward to making less chips with these 1/8 single flutes but no point if you have to go around with a 6mm 2 flute to clean up,

[JAZZCNC]

Hi Jazz, what 3 flute rougher do you recommend? I was quite looking forward to making less chips with these 1/8 single flutes but no point if you have to go around with a 6mm 2 flute to clean up,

I mostly cut aluminum and use 8mm reduced neck Alu power cutters from cutwell tools, thou recently I've tried the APT version and they seem ok plus good price.

https://www.shop-apt.co.uk/economy-3...-diameter.html

I also tried these and they give a very nice finish, but I've not got enough time on them yet to see how well they last.
https://www.shop-apt.co.uk/3-flute-v...lc-coated.html