Using a cutting torch to
pierce a hole is something frequently done whether you are using Plasma or Oxy-Fuel.
But sloppy piercing increases wear and costs and it is just not practical for
smaller holes.
Drilling is the obvious
alternative but physically mounting a drilling machine on to the cutting
machine can be difficult but it is worth the effort.
After purchasing a machine
with an excellent deep hole drilling machine, holes are now only drilled and
not pierced at one Swiss cutting company.
They say that they have found that
that this solution his is more economical, the cutting process is quicker and costs
due to wear have been reduced.