Good day.
I have bought a Avid cnc Pro4x8 which should arrive in the next 2 weeks. an OPT laser will be added as well at a later date.
I am looking for some advice on which bits to purchase from users that have experience in what I want to cut.

I would like to be able to cut and etch granite but I am not sure where to get these bits in the US.
I have put a links of what I am trying to accomplish.

If any one has experience with foam and plastic cutting as well pls advise on bit choices as well.


Not sure which bit to buy > Granite stone cutting


Not sure which bit to buy > Granite stone etching


Bit planned to buy > Granite stone drag bit - https://www.widgetworksunlimited.com..._engrv-250.htm

Not sure which bit to buy > Foam cutting bits?
https://www.youtube.com/watch?v=CiAbYo4AZpA
https://www.youtube.com/watch?v=0ca4V4Pr3rA

Bit planned to buy > Plastic sign cutting
https://openbuildspartstore.com/3d-s...nc-bit-kit-v1/
https://openbuildspartstore.com/meta...nc-bit-kit-v2/

bought already > Woodbits - https://www.avidcnc.com/cnc-router-bit-set-p-427.html

bought already> Aluminium - https://www.avidcnc.com/cnc-aluminum...set-p-464.html

Thank you in advance.