All, I don't normally react within the public domain to comments made; but ...
Modern technology moves what can be achieved over time, via a specialist manufacturer, using the correct base material, i.e. Chrome Vanadium, now allows water cutting to achieve not only the correct profile but remarkably even the double hexagons for the cylinder head bolts. It's actually the microscopic slurry partials in the water that performs the cutting; in this instance using larger partials for the outside profile and finer ones for the two double hexagons ends which gives a smoother finish. The spanner is then bench tested to confirm correct torque suitability (45Lbf) and on an engine to confirm cylinder head bolt access. All current customers have been very pleased with the results.
I'm also offering 'support' to other club members in their venture down a forged route, but its very early days and they are leading on this.
Neither approach is intended to give feedback to what is already out there in the market place or offer an opinion on which gives the 'best result' / value for money.
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