I've been working on one that ranges from 12mm with to 4mm slot with for holsters n belts @ 3mm deep with a variable radius
to allow for belts and HD laminated leather and still give a slight curve to the finished edge not 2 corners and a flat spot but a appealing finish and
should be reversible and work on a generic buffer like a HF 3400 rpm buffer w/ variable speed control,
and will allow user to to switch grooves to the inner side or out side which ever works best for the end user
first two have been prototypes and changed to make more of what I want,,,,, but also considering also having a run of 25-50 or a run of 100-1000+
first small run might be $48-52 cost so if I can cover that and 25%? that would cover my out of pocket so far
I'm very happy with what I have,,.my guess a small run cost less than 50, will be in the 70 85 unit range 100 or more will drop 10-15%
I've dumped a several hundred in so far with the first, but getting to where and what I want,
First one were done in stainless as that was on hand The company doing the prototypes is into combat rifle muzzle-brakes and suppressors state of the art CNC laser cutting stuff
run items will be 60 or 70 grade aluminum and tumbled polished
will let you know how it finishes as I'm waiting on a third and hopefully final unit
would be interested in making a production run if interest was more than a few
will share details and end results when we get there,,db