Those look to be the people and they only seem to be selling the holders now. Really it's the block that needs to be well made. I did use a far eastern clone on a myford I had some time ago. The holders were ok but used soft screws to fix the tool in place and they mushroomed over making it impossible to get them out. Too much pressure on the holder clamp and it came very near to spinning the cam round entirely.
I bought a small self centring 4 jaw to make some more screws out of key steel or square flat ground cast but the lathe went before I got round to making them.
It might be worth contacting them and asking about the whole tool post. They were selling them and they sold well but I don't personally know anyone who bought one.
John
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Edited By Ajohnw on 08/10/2016 23:35:25