ruple guage or rise and fall indicator for slipjoint pocket knives

I finally made a really nice ruple guage or rise and fall indicator for building slipjoint pocket knives. the biggest keys for this one is that you dont need a milling machine to build one, and it is big and heavy and thick. the big surface area is nice to work on. the heavy helps with stability on the bench, and the thick steel lets you set your pins in deeper so they are more stable. http://caltoncutlery.com