MODEL RAILWAY DCC 8-pin, 21-pin and PLUX DECODER EXTRACTION TOOL . It can be used with NEM-652 8-PIN, MTC-21 pin, PLUX16 and PLUX22 decoders. This handy tool is used to help with the removal of a DCC decoder from it's socket, making the process easier and reducing the chances of damaging the decoder pins when pulling.