here's a gauge I built up to punch 2100 belts. I used the new Thiokol belts that came with my 2100 to make it I bent a piece of sheet on a brake made a guide than layed out the track over the aluminum when the time comes to punch the outer belts it will be the reverse procedure skipping every other set of bolts. this style of gauge could be used for any rubber track once you have punched the first set of holes .drop a couple of bolts in punch the rest than move the gauge to the last set of holes and punch out the next set.
