The 9-pc Tesla Die Set, No. DF-SPR/TESLA9, from Dent Fix Equipment, is designed for use in the application of 5mm self-piercing rivets. Included in the set are eight forming die heads for 5mm SPRs (H1-H8), one SPR rivet holder (B1), and a case. The heads fit the 10T Self-piercing Riveter, No. DF-SPR70. Fits the 10T Self-Piercing Riveter, No. DF-SPR70 (sold separately).