I was able to add these 2 items to my ever-growing collection. I have several other types of these, but this is the first time I ever saw these 2 styles for sale. Pipe Jaw inserts for standard nut wrenches. The leather strap is a replacement on the one. Printed material is from Cope's book.

So THAT'S what those are

thanks

 

Another "nugget of knowledge" for the pile!!!!

Never knew about these.  Aomething to watch for!  Thanks.

Would have never guessed! Thought they were for making pasta  or the usual suspect... leather work
Joe B