Kingdom of Airsoft show their new tool for airsoft maintenance use, the Piston Tooth Rack Jig... "A new addition to the workshop is my custom piston tooth rack jig. This will allow me to take the teeth off the rack of piston with much more precision. The propose for this is to short stroke the piston, or for the piston to be put in a DSG set up. With the help if this tool, we can now take the guess work out of the equation and mill off the teeth so that it stays perfectly flat, every time. (Also speed up the process a lot)"