This sale is for a product I designed to trim 12ga hulls for roll crimping. The cut length is adjustable and uses standard razor blades. 

The green plate on the razor in some pictures has been replaced with 3 washers which can take the load of the screws tightened down tight.  The first 2 pictures show the current and best design I make. Slight changes to the design will be made as I discover improvements the pictures shown may be slightly out of date.
The function will be fantastic.  I have improved the design with a few fine adjustments.  

I'll add some new photos soon.

SEE MY YOUTUBE VIDEO

I make a lot of things for reloading please see my other sales. 
Thanks for looking!