Bill,

Mine does not (yet) have a left side stop. What I have is a 6 sided aluminum bar to the right of the blade. It screws into the side of the shear. On that slides an aluminum ring that has the small thumb screw for tightening. Now that I have figured out how I can use a bigger knob on short plates I will be getting one. With the bigger knob and cermark ruler on the bar and cutting standard sized blanks I will be shearing with the best of them.

Right after I get my spare blade so that I can get the old one sharpened and the nick from the ss ruler my son tried to shear removed. :'-(  >.<  :-(