Hello, These were found in a machinist's box. The piece at top I have seen before, curious about what it is called, and its use. The piece in the middle right is tapered. The 2 at bottom have numbers on the ring/flange, 62622 and 62623, and what looks like a capital U (within a shield border) , no idea what these could be. Thanks, Lou

The brass piece is a parallel for a magnetic chuck.

The pointy one looks like a homemade tap guide for the drill press, mill, or lathe.

No idea on the tapered pin.

The balls are tooling balls used for fixture and jig locating. Think of them like a spherical dowel pin.

Greyson

Hello, Greyson. Thanks for the info, that was quick. Also thanks for using the dowel pin reference, makes more sense to the woodworker in me. Regards, Lou

Prolly needle from bearing.