This is a new AMF (Andreas Maier Fellbach) pin wrench. AMF is a large company based in Germany with a great line of special hand tools. This is their tool number 54924. It is for nuts with radial holes made to DIN 1816 with a 34-36mm diameter. The pin is listed in the catalog as a nominal size of 4mm. Made of special steel, hardened, and blued. Overall length is 170mm (6-1/2") and 5mm thick. This wrench can be used for the Porsche 911 Turbo spoiler. A fine German Made tool that will allow you to do the job right.