Originally Posted by
uptonbeat
My dad gave me his '
76 Raleigh Grand Prix, as well as his old toolkit from the day. Inside is this piece, but I'm not quite sure what it is. For a long time I thought it was half of what might be a chain breaker, but now I'm thinking it's a spoke wrench. If so, why the hexagonal shape?

I had one in fact still have it when I was a kid some 40+ years ago fits the time 1970's