Cornwell ratchet comparison.

[d.mcfarland]

Anyone know anything about the difference between these 2 corwell JR30's?

One is the current design, and the other must have been a previous version.

 

[markf4e]

The one with the screw on face plate (2 holes oposite of each other) is the older design, still the same tooth count though.

 

[d.mcfarland]

Any guess on the year the design changed?

 

[woody 73]

I like tools that are made in my Home State of Ohio; after a long phone call to the folks at cornwell I learned a few things, and one thing I learned is they are somewhat clueless when it comes to design change and dates. The person on the phone told me to go to the ( AA ) website for information.

So if you can send Alloy artifacts (AA) a message and ask if them if they know of the date change. Shame that Cornwell does not have that information, lost to time or at least you will need a good catalog.

 

[markf4e]

http://home.comcast.net/~alloy-artifacts/cornwell-quality-tools-p2.html#sockets

1949-1954 based on AA. I have a 3/8 version with the screw on faceplate. Awesome ratchet!

 

[d.mcfarland]

I wonder if the rebuild these or just replace them with new ones? I looks like the parts would be interchangeable.

 

[markf4e]

Have you taken it apart yet? Take a punch and put it in one of the holes, and hammer it sideways to take it apart. Note sure if the parts interchange though. I would try to keep the old one, if only for the history!

 

[d.mcfarland]

The socket retaining ball is stuck ... bummer huh.

 

[otis66]

Any guess on the year the design changed?

Alloy Artifacts: Looks like it was made 1949-1954.
http://home.comcast.net/~alloy-artifacts/cornwell-quality-tools-p2.html#sockets

 

[markf4e]

spray it with some wd40 and use some channelocks to push the ball back in, it will start to work free. Or just sell me the ratchet

 

[xwarp]

I bought one just like the one in your picture that is only marked "cornwell usa" at a local swap meet this weekend for 12 dollars.

Stripped and thoroughly cleaned and lubed it.

Works like new now.

 

[otis66]

Back in the day the old timers would soak there ratchet heads in a coffee can filled with trans fluid to lube these ratchets. I would use Marvel Mystery Air tool oil today. Marvel Mystery Oil was used by my shop for air tools, and always around the shop. Try soaking the ratchet head for a couple of days first.
http://www.marvelmysteryoil.com/index.php/site/mat/

 

[KeithHubero]

I looks like the parts would be interchangeable.