SDB-3-3/32 is the same as AT520CDB-3 Swage Die. This is a replacement die and not a die set. 

Mfg: Daniels DMC

Condition: Used SDB-3-3/32 is the same as AT520CDB-3 Swage Die. This is a replacement die and not a die set.

Mfg: Daniels DMC

Condition: Used