Milling a PCB - Sherline Mill, Dremel tool, 0.2mm engraving cutter

[xorman2k7]

I'm planning to build one of these.. do you know the part number of the dremel bit? it seems I can't find one that's small enough

[enginuitor]

@xorman2k7 I don't know if Dremel makes an official accessory that's suitable, but the bit I used is a 40-degree, 0.2-mm carbide engraving cutter. Ebay seems to be the best place to get them at low cost. Search there for "carbide pcb engraving" on and you'll find a nice selection. I think mine came out to about $7 for a 5-pack.

[xorman2k7]

@enginuitor thanks! I'll look up into that