Ok machinists, what are these things?

[poppinjohnnies]

A buddy went to an auction last weekend and gave me a beer flat full of tooling, etc that he figured I could use with my old lathe. These things were in with the tools, but I’m not sure what they are. One appears to be a drill bit stand. It has the hole sizes stamped in it. The other 2 blocks are full of holes and appear to ne precision ground. The other gizmo came with a box of stuff with my lathe. Any ideas?

 

[Maui]

The first photo is of a drill bit stand, correct. The second photo is a set of 1-2-3 blocks. They are typically used on a milling machine for setting up work, and can be very handy. I would keep them. I am not sure what the third tool is that appears in the last two photos. It looks like a lathe threading dial, but might be something else.

Maui

 

[Maui]

Actually the first item might have been used for holding taps too.

 

[WhoWhatNow]

3rd/4th pic is a boring head. It is typically used in a mill.

 

[davethorik]

The first photo is of a drill bit stand, correct. The second photo is a set of 1-2-3 blocks. They are typically used on a milling machine for setting up work, and can be very handy. I would keep them. I am not sure what the third tool is that appears in the last two photos. It looks like a lathe threading dial, but might be something else.

Maui

I am not as familiar with lathe tooling as I am with mill tooling, but the last one sure looks like an adjustable boring bar holder. The degree wheel is a circular vernier caliper to accurately adjust the diameter you're turning.

Edit: whowhatnow beat me to it. A boring head.

 

[tool_scrounge]

Actually the first item might have been used for holding taps too.

Or a tap guide for tapping straight.

 

[sreeb]

Or a tap guide for tapping straight.

+1 on this since it is drilled through.

 

[pharmerphil]

The first photo is a home made dia. check or drill holder; I believe it is to check stock dia. The second is a 1-2-3 block, Keep that! The third has something to do with boring a hole, I believe it is to check a set diameter. I went to trade school and the first two were class work.

Phil

 

[Bob-B]

+1 on the 1st block being a tap guide. Most shop made tap holders I've seen had 2 sets of blind holes, 1 for the tap and 1 for the tap drill.

 

[whateg01]

1-2-3 blocks have so many uses, even when they are no longer precision tools. Definitely keep those around!

The last is a boring head used on a mill, probably made by Criterion, but could be a copy. In "normal" use, it would be mounted in a milling machine spindle with a boring bar sticking out the bottom, shown on the left end of the photos. That would spin much like a large circle cutting tool in a drill press, but much more rigid, so it can bore out a hole.

Even on a lathe, it might have a use. Many people make a fixture for holding it so it is perpendicular to the spindle, and rotate it to turn balls or other radii. Google "boring head radius lathe" and you'll see what I mean. I'm not a fan of the method because of its limitations, but it does what it does.

Dave

 

[Hephaestus29]

I was going to say a drill guide but taps would
work in it too.

 

[Hephaestus29]

3rd/4th pic is a boring head. It is typically used in a mill.

X’2 on a small boring head.

 

[Carla]

1-2-3 blocks have so many uses, even when they are no longer precision tools. Definitely keep those around!

The last is a boring head used on a mill, probably made by Criterion, but could be a copy. In "normal" use, it would be mounted in a milling machine spindle with a boring bar sticking out the bottom, shown on the left end of the photos. That would spin much like a large circle cutting tool in a drill press, but much more rigid, so it can bore out a hole.

Even on a lathe, it might have a use. Many people make a fixture for holding it so it is perpendicular to the spindle, and rotate it to turn balls or other radii. Google "boring head radius lathe" and you'll see what I mean. I'm not a fan of the method because of its limitations, but it does what it does.

Dave

Concur.......... : )

cheers

Carla