Thank you for that Mike, thank you for highlighting the link address.
Its specifically the 9.5 - 10mm variety, my usual commercial supplier is over in the USA.
Really I was just asking about....... in case someone had some gathering dust or whatever..... and might want to sell them. as well as it being quite urgent.....
I think from experience they are the best tool for the specific job in hand..... lifting sections of floor from a broad bedding plane, without causing further development along possible hairline fractures in the equally broad roof above....
Richard.