I am going to replace my cam belt on Punto 1.9 JTD, the bolts that is holds the cam belt cover had funny shape bolts inner look like sunny but it is not star or hex, I am try to find name of the socket to fit and I don't know what is called

Fiat do what is called ribe.

I bought this set of RIBE bits
https://www.machinemart.co.uk/p/pro168/
They seem OK

Robert G8RPI.

Very kind & thanks for info