Rainbows: Unless you have a specific need for carbide tooling, I wouldn't bother. Spend your hard-earned on a tangential holder instead (no connection, etc). As you an see from the replies above, there are so many carbide tips for industrial applications that you could go mad trying to decipher what it is you are looking at. By the time you have bought a shank and a few unknown tips you will have spent more than the cost of a tangential, although the initial price of these looks somewhat offputting! And, as has been pointed out many times in these hallowed pages, carbide tips generally need industrial speeds and feeds to work properly.
Just my own thoughts. And, yes, I have a tangential tool holder which I use for 99.9% of my work.
Rgds,
John