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One problem: the gears are all aluminum.

I thought of that--perhaps they are used with a pantograph-type attachment for a lathe. Don't know for sure though.

Haven't yet decided. It's such a cool set!

Gears wouldn't be of aluminum, though.

Makes sense, but it doesn't help me give a name to the set. Thanks, though.

I got this set of gears of various sizes a couple of days ago, and have been unable to find anything out about it. The box measures 8 x 24, and contains around two hundred aluminum gears, all of different sizes. It came from the estate of a clock repair guy, so I suspect it has something to do...

That's it--thanks so much! Al

Help! I've seen these before, and recently snagged one at a yard sale, but can't remember what the heck it is. Anyone out there familiar with this thing? I know it's a machine shop fixture, but do not recall its function. Thanks in advance! Al

Thanks, guys, mystery solved. I did an image search for hold down clamps surface grinder, and found they are for holding non magnetic items on a mag chuck. Found it on a knife makers web site. Al

Do you know what they are called? Some sort of hold down? Thx.

Help! This pair of somethings came in in a load of machinist tools, and I haven't a clue to what they are or do. The stamp on the side says, "Metric Eng", and they are made of steel. Anyone else seen these! Thanks in advance. Al

I'm not clear what you mean by a "drill only". Is this a drill press stand? If it's a floor model, $200 is pushing the upper range. Hope this helps. Al

Bingo--a work stop! Thanks so much. Al

This one has me stumped. I bought it along with a bunch of other machinist stuff from an estate, t's an SPI, so it is definitely for a machine shop, and the model number is 98-040-9. A Google search turned up nothing. It has what looks like a holddown on the base, and I think it might...

Thanks to everyone who posted answers. Sadly, they all seem unsatisfactory, except perhaps the one for pulling chair caning. It's really lightweight.

Yeah, you're right, it is SC. Apparently I need to clean my glasses. Also, there is a fencing tool which is also used in stretching wire, but it has a very pronounced fulcrum point, which this one doesn't have. It well may be for barb wire, but it doesn't to me seem particularly well designed...

Hi--this interesting item is apparently used for grasping and or pulling wire or cord (at least that is what it looks like to me), but I have no idea what it's called, or its application. The letters "SK" are on the side, but obviously it's not an old S-K automotive tool. Anyone know what it...

Yeah, any of these specialty gages are over the moon!

Bingo! They are called solid thread hole location gages--here is a link: http://www.ring-plug-thread-gages.com/ti-hole-location-solid.htm Thanks for your help, guys, that solves the problem. Have a great holiday! Al

The pins are all the same size, namely 0.25, and the matched pairs are identical, so I don't really see how they could be go/no go since they are the same size.