Nick, you should then also look at the Japanese high end pruners. Check out Niwaki's website. They have their own Niwaki brand and market Okatsune and Tobisho brands. Some of the Tobisho and Okatsune ones are available on ebay and amazon in US. Once I had opportunity to use a Tobisho at our local bonsai club and it was truly impressive. The other reputable japanese manufaturer is ARS. For example this pruner on amazon. Okatsune has the hardest steel of all (Rockwell: 60-61).
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Japanese Pruners
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