Earlier on today a neighbour of mine stopped by so I could pick over some bits he was clearing out of his place and taking to the tip. He is living in a bungalow that used to belong to his wife's grandfather and he was a machinist apparently. I'm curious about one set of items and wonder if anyone knows what they are. I've placed a picture here. The lower group in the picture I vaguely think I've seen before and may be taper pin reamers but I've not seen them like this as they're square or pentagonal and came in a tube labelled "broaches", the upper two items have a very fine file on one end and the other end is ground flat on all sides except for a very small section of file teeth on one corner near the handle, each end has a nice protective screw on cap as shown and I was wondering if these had a specific use or just how this chap kept these tools.
Looking forward to any insights.