Kip,

You've confirmed what I was already thinking... but so many varieties of tooling and most of the ebay ones seem to be 25x25 which is too big, I need 10x10 or 12x12 I think. I havent figured out the types of tip yet either... I haven't seen an indexable parting tool... maybe I'll bite the bullet and look at RDG's catalogue or pop up to Chronos at Dunstable this weekend.