specialized tension bar

[Cyberwasp56]

I'm not sure if anyone can help or not. I'm handicapped and place the lock in a vice. I use 1 finger on my right hand for tension while picking with my left hand. Typically, I have no issues with BOK tensioners as they are long and tend to stay in place.

My problem is with the TOK tensioners. Since I can only use 1 finger to apply tension and can't use my thumb, so it tends to slip out when I back off the tension. I had an idea of a new tensioner that has grooves on the side that would dig into the keyway and kind of jam it in place.

I asked a few pick companies, but no one seems interested in making one. Anyone have any ideas as I'm picking on a master 570 and the tok keeps slipping out. TIA

[Squelchtone]

Peterson already makes serrated turning tools..

see pic here:
https://www.thinkpeterson.com/3-serrate ... #gallery-2


Here is a set of traditional serrated turning tools:
https://www.thinkpeterson.com/3-serrated-tension-tools/

Here is a set of flat serrated turning tools:
https://www.thinkpeterson.com/flat-5-se ... -tool-set/

you may enjoy these for top of keyway tensioning:
https://www.thinkpeterson.com/pry-bar-3-piece-set-gold/

Here is page 1 of 3 of all of the turning tools they sell: https://www.thinkpeterson.com/turning-tools/?page=1

Hope this helps,
Squelchtone