Stihl chain sharpener

[Timberframed]

Acquired on of these on a loaner basis. Have to figure it out. No paperwork.

 

[TreeWinder]

Nice

oldie but goodie, wish I still had mine; ran over it. Produces a very nice edge

 

[BobL]

I have 3 of the oregon version (they were in a bargain bin at the local hardware store for $10 ea) and modified one to take files for square ground chains. A few months later I regained my hand filing skills so I haven't used them much since.

 

[rmh3481]

Tool is called a 'file n joint' originally patented by Granberg.

Here is an old thread that may help you figure it out;
http://www.arboristsite.com/picture-forum/52970.htm

Here are the pdf instructions;
http://www.cannings.com.au/documents/File-N-JointInstructions.pdf