Thanks to all who replied to my query, I found what I wanted at CARBATEC. Its a wood grinding blade for an angle grinder, goes real well, even in our local hardwood (red gum) Theres 2 of them, coarse and fine. Haven't bought the fine one yet. $19 each......cheap enough to give it a try. An oxymoron - a cheap tool that works!!
For those interested, heres the catalog link (hope this works)
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Andrew VK3BFA.