1/2” Drive Plugs to Identify

[humber2]

Here’s most of what I have with a few positively identified.


From L to R

Mossberg 371 stepped plug.

Unplanted unknown, no chamfers on ends, 4 middle pinches.

W&B 390010 from Warren and Brown of Australia, made for their torque wrenches.

Unknown, probably Duro, D-I or Indestro, circular chamfer to ends, no middle pinches, 1.42” long

Unknown, this one would be the easiest to swap over with no retaining ball at one end. 1.39” long.

Unknown, shortest example, minimal end chamfers, no middle pinches, 1.30” long.

Longest at

 

[humber2]

Sidchrome, Australian made, chamfered each end, two pinches on diagonally opposite sides each end. 5”long. Usually used with W&B torque wrench.

Unknown round coupler, 3/8” drive, too fat to be a socket, maybe mild steel being fatter than a socket would be.

Comments would be appreciated, even more examples appreciated. TIA

 

[bonneyman]

Dayum, Humber, that's the best selection of drive plugs I've seen!

I think I have one plug - in my Duro female ratchet. Don't know if it's an actual Duro plug - just one I had to make the ratchet usable.

 

[humber2]

Let us know if it matches any of the above please as I’m not sure what goes with the D.I rats I have.

 

[d42jeep]

Humber,
Here are some plugs that I have pictures of, predominantly Duro and Indestro plus a couple others.
Indestro
The ones with the flange are 1/2” drive.

Duro 1/2” drive
Duro 3/8” to 1/4”
Williams 3/8” drive
-Don

 

[d42jeep]

Some Walden plugs, mostly 1/4” drive with a few 1/2” drive towards the end.
-Don
1/2” drive Walden
Odd pin added by previous owner.

 

[Ed in Virginia]

Unknown round coupler, 3/8” drive, too fat to be a socket, maybe mild steel being fatter than a socket would be.

Comments would be appreciated, even more examples appreciated. TIA

I have a coupler like that to couple two (1/2" and 9/16") distributor wrenches to a 3/8" ratchet:

 

[d42jeep]

Here are a few more plugs I took pictures of today. The first one is a Bonney 1/2” to 3/8” drive.
This one is a Williams 1/2” drive plug that looks to have been a captive that escaped.
This 1/2” drive one is totally unmarked and I don’t know anything about it.
Maybe somebody will recognize it.
-Don

 

[humber2]

I wonder if the unknown one has other cross-eyed mates?

I’ve measured the indent diameters of my group and no two were made by the same upset die.

It certainly pays to scrape the bottom of toolboxes to find these.

 

[d42jeep]

Here is a 1/2” drive Craftsman plug I found in the garage today.
-Don

 

[four.cycle]

Indestro 1302 1/2" HEX DRIVE screw driver adaptor 1935 Indestro catalog pp 24

Indestro 2292 3/4" drive drive adapter plug 1948 Indestro catalog No. 16 pp 22

Indestro 3215 1/2" drive adaptor plug 1948 Indestro catalog No. 16 pp 8


* The Duro/Indestro plugs are unique in design - they have a little "mushroom cap" with knurling around the perimeter. See Don's example above in the green box.

 

[Oldtuleguy]

Here's a Duro 4293 1/2" to 3/4" drive plug

 

[d42jeep]

I found a 1/2” drive plug at a tool sale on Saturday. It’s obviously been used hard but unfortunately it has no manufacturer’s markings.
-Don

 

[humber2]

I found a 1/2” drive plug at a tool sale on Saturday. It’s obviously been used hard but unfortunately it has no manufacturer’s markings.
-Don How does that compare to the one with the Duro rat in your reply#5?

 

[d42jeep]

Humber,
All of my Duro and Indestro 1/2” drive plugs have the collar. The smaller 3/8” drive plug bears a closer resemblance to the new one.
-Don