Hello from Southeast Washington DC

[TomWS]

@TheSultanOfSoutheast

does anyone happen to have a picture of a hole drilled into 3/6" think steel (or somewhere thereabouts) so we can see how smooth the hole is?

Check out

Having trouble getting nice holes

Plasma cutting good quality holes requires a height control and a good quality plasma system. If you are piercing at the plasma cutters suggested cut height…then expect the nozzle (some call it a tip) to be damaged as soon as the very first pierce. The nozzle orifice shapes the cutting arc into a spinning, rotating column of hot, ionized gas (as much as 25,000 F with an air plasma). The arc relies on the accurately machined copper nozzle orifice to control its shape, however when a crater or a …

Jim Colt is the Guru of Plasma Cutting.