What is this cutter?

Cheap inserts??? Just depends on the size of the insert.
If this is something like a SPG422, which I doubt this is, these are cheap. But if this is something like a SPG532 or 633, they can be expensive. These are getting harder and harder to find in these sizes today. The poster did not give us much information other than a picture.

Oh, that I did not know. I know SP_4 inserts are dirt cheap, my chamferring machine uses them. Had no idea the largers ones were expensive & hard to find. Luckily I don't have any tooling that uses them but good to know!
 
That holding set up looks pretty dodgy to me, lucky it didn't come flying out
 
Wedge clamps have been used for years. Haven't seen one come apart as long as it is tightened down.
 
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