ASTA A-D12B is 2 x rotary diesel fuel injection pump anti-tamper screw sockets - 12.6mm and 7mm. Used on BOSCH and VAG Group systems.

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7mm is for EDC pump cover socket from 1996 - 2003, OEM 0986612605.

12.6mm is for Bosch VE Diesel Pump Socket, OEM 098661750.