The "What Is This?" game

[ThatOtherGuy]

from a sailing boat for tying off lines.

[Paulcet]

Powder measuring device for reloading ammunition?

[piresito]

Hardcore Sex toy?! 

[mister]

This is great cause we have no idea of scale. That makes it harder. This is a good one..

Stop valve of some kind - water, air, whatever.

Michael

[dohabee]

leather hole punch, or maybe cigar cutter?

[mister]

Toilet roll holder

[Bluesmudge]

For soil core samples?

[dam]

Powder measuring device for reloading ammunition?

That's close enough. I say we have a winner
It's a powder measure for a muzzle loading rifle.

[Kijona]

Powder measuring device for reloading ammunition?

That's close enough. I say we have a winner
It's a powder measure for a muzzle loading rifle.

DAMN! Should've known that one.

[Paulcet]

[jestercinti]

A pipe coupler 

[dam]

I was thinking a shaft coupler seeing those two set screws? It looks like something I've seen before,,, somewhere.

[dohabee]

we need a hint?

looks kinda like a part I used to add power locks to my non-power lock truck

[Paulcet]

Dam got it.  Shaft coupler. 

Here's another angle:


Ok dam, what's next?

[dam]

OK, how about this?

[cbrfxr67]

reminds me of a steering stem bearing remover,...have something that resembles that for fixing my Specialized that I never used,...

[mister]

Cam shaft - I love it when megan fox says can shaft

[jestercinti]

Rivet tool.

[ryott52]

Cylinder hone, minus grinding stones?

[dohabee]

some kind of adjustable bit to control depth of screws?