Are they metal lathe bits? Help!

[JulieCentralOregon]

My Mom passed away recently and we've unearthed these bits while clearing out the garage. Our Dad was a crafty guy and had all sorts of toys in his garage for making stuff. I have no idea what these bits are! Can anyone help shed some light on them for me? I'd love to know what they are, what they're used for ...what they're called. Thanks so much to all those craftsmen/women out there that still hold their craft close to their hearts and can still tell a person what a kind of tool we may have here!

 

[Old Man Roger]

I think you need more posts before you can post pictures.

 

[RTM]

pix did not load, guessing you need 5 posts to show pix, or link them from elsewhere.

Now they are here! I personally have no idea.

 

[JulieCentralOregon]

I think you need more posts before you can post pictures.

I've been able to load some pictures..

 

[Gunfixr]

Lathe bits? No.
There are a few things that look like some sort of rotary bits, but it's not clear what they would fit.
There is one item that looks like a bit holder, the piece with the set screw.
They all seem to have this common flat base, so, if they are cutters, they fit some holder I don't see in the pics.

 

[Old Man Roger]

I’m no machinist, but I have a metal lathe and I don’t recognize anything. Maybe something for a wood lathe?

Give it time, someone here will know what they are.

 

[JulieCentralOregon]

I’m no machinist, but I have a metal lathe and I don’t recognize anything. Maybe something for a wood lathe?

Give it time, someone here will know what they are.

Thanks!

 

[isb cornbinder]

Those are called LOVEJOY DRIVES. Check this link.

Google Search

www.google.ca

 

[Old Man Roger]

Those are called LOVEJOY DRIVES. Check this link.

Google Search

www.google.ca

I don’t know man, a lot of them hold a drill bit. Like to center drill for the larger cutter?

 

[LXCam]

Valve seat and perch cutters

 

[Gunfixr]

Those lovejoy drives are a coupler between an electric motor, and whatever, like a pump or something. They make up for small amounts of shaft misalignment, and have some cushioning, while maintaining drive torque.

 

[RoninB4]

To the OP- Check these with a magnet, if they stick then they likely are NOT a coupler. Several of them appear to have a pilot drill and would cut a larger diameter hole or groove (O-ring) for something. Others appear to be a flat-bottom cutter because they appear to have relief behind the cutting edge. Each one seems to be for a very specific task and it's difficult to tell without inspecting them.

Do all of them have a shank for mounting in a machine? Was your father a machinist at his place of work? Are there any machines for metal working there now? He might have made and/or used these for something he did.

I've been a machinist for over 40 years and I've seen/made many cutters like this but I couldn't be certain unless I inspected it. If these are special cutters they would be of no value or use to anyone except for the specific task they were made for. To that task they would be a great help to anyone that does the same work on the same part(s).

Very sorry for your loss, reply if I can be of any further help.

 

[txvwnut]

None of those are Lovejoy couplers. Lovejoys don’t use a drill bit in them. Some of those look to be counter bore type cutters and the rest could be specialized OD cutters.

 

[itsnoyfb]

Also check out "Valve Guide Seal Cutter"

 

[Sweetcorn]

They're trepanning tool bits.

As some others have said, used for cutting O-ring grooves or other features in parts. A lot of times, these are specifically made or tweaked for a certain application.

 

[American Locomotive]

They are not love joy couplings. I think they are custom lathe cutting tools for a turret lathe. You would put the tool in the turret of the lathe, and do a bunch of operations quickly on the end of a piece of bar stock. Some of the tools look like they could cut/shape the outer diameter of the bar, others look like they might cut grooves (o ring grooves?) in the end of the bar.

 

[Old Man Roger]

Valve seat and perch cutters

To the OP- Check these with a magnet, if they stick then they likely are NOT a coupler. Several of them appear to have a pilot drill and would cut a larger diameter hole or groove (O-ring) for something. Others appear to be a flat-bottom cutter because they appear to have relief behind the cutting edge. Each one seems to be for a very specific task and it's difficult to tell without inspecting them.

Do all of them have a shank for mounting in a machine? Was your father a machinist at his place of work? Are there any machines for metal working there now? He might have made and/or used these for something he did.

I've been a machinist for over 40 years and I've seen/made many cutters like this but I couldn't be certain unless I inspected it. If these are special cutters they would be of no value or use to anyone except for the specific task they were made for. To that task they would be a great help to anyone that does the same work on the same part(s).

Very sorry for your loss, reply if I can be of any further help.

None of those are Lovejoy couplers. Lovejoys don’t use a drill bit in them. Some of those look to be counter bore type cutters and the rest could be specialized OD cutters.

Also check out "Valve Guide Seal Cutter"

trepanning tool bits.

They are not love joy couplings. I think they are custom lathe cutting tools for a turret lathe. You would put the tool in the turret of the lathe, and do a bunch of operations quickly on the end of a piece of bar stock. Some of the tools look like they could cut/shape the outer diameter of the bar, others look like they might cut grooves (o ring grooves?) in the end of the bar.

I think all these posts just about sum it up..lol