Affiliate links:

GENMITSU PROVerXL 6050 Plus CNC Router
http://shrsl.com/48dtj
Discount code to SAVE $150: Aurora

GENMITSU PROVerXL 4030 [V2] CNC Router
https://shrsl.com/46nnl
Discount code to SAVE $100: AuroraTech


SpeTool 2-Flute Carbide End Mill used with stock spindle(~$4.8 each)
https://amzn.to/3RtDukE

Speed Tiger $23 Solid Carbide Zirconium Nitride single flute end mill (1/4" shank, 1/8" cutting diameter, fits Makita wood router)
https://amzn.to/444GaYA

GRBL Reference:
https://www.diymachining.com/download...

Aurora Tech Channel:
My 3D Printer Recommendation List with 7 Printers out of Almost 100 Machines I Have Ever Tested:
https://auroratechchannel.com/