I want to make 50um hole on a SLA 3D printed part. I did 200um hole using 0.2mm drill bit, but now I need to make 50um hole. My question is what is the easy way to do this, any help or suggestion will be appreciated.
I mange to drill a 95um hole on a SLA 3D printed part and also on PCB. Thickness of SLA part was 300um and thickness of PCB was 400um. I bought drill bit from Chinese vendor. I used small CNC machine for drilling WITH RPM equal to 3000. Below is the link for drill bit.