What are these?

[-Matt-]

Found these in a box of stuff, I have others like them but never known what they are.
Some are 5 sided, some are 4. A few are rhomboid in section. Some sort of reamer? Some look to be shaped like a graver.

 

[selectedgrub]

They look like engraving tips for a tool like the Graver

 

[RichardM]

Clock Broaches

 

[The_Yellow_Ardvark]

Clock Broaches

AKA clack makers hand reamers.

 

[-Matt-]

Excellent! They came with a box of clock-y stuff so that all makes sense. There is some tiiiiny ones in there too, smaller than a needle that look like they'd break if you breathed when using them!

Thank you all for the help

 

[The_Yellow_Ardvark]

Excellent! They came with a box of clock-y stuff so that all makes sense. There is some tiiiiny ones in there too, smaller than a needle that look like they'd break if you breathed when using them!

Thank you all for the help

The really tiny ones will break if you look at them funny.

Or if you snag them when taking them out of the tin.

I look after a clock restoration place in Somerset. I watched one engineer take a pin. Rough it with 1000 grit wet and dry and used to resize a hole. A great skill to watch them at work.

 

[Spark plug]

Clockmakers reamers will generally have 5 sides, handy things to have around.

 

[doubleboost]

Clock making reamers.
I had a cigar tube full of them.
Gave them to my mate Bob for his DTI repair work.