This set of special sockets is to allow for the repair of Bosch VE, VP EDC Tdi and VP37 CR high pressure pumps. The kit includes the triangular and double D sockets required for correct dismantle and assembly.
Also see DM-1443 timing adapter set.

For Bosch diesel injection pump VE (Bosch VE)
Triangular socket for central closing plug
Governing pressure socket
Triangular socket for bearing screws governing lever 

For Bosch diesel injection pump VP EDC TDI (Bosch TDI)
Triangular socket for top cover screw 

For Bosch diesel injection pump VP 37 (Bosch CR)
Triangular socket for body