Profile: R J N Tool & Automation, Inc. offers assembly tools and fully automated machines for secondary operation machines, drilling, tapping & screw insertion. Our precision machining services include production machining, prototype development, reverse engineering and broken part repair. Our automated machinery includes automatic tray destacking, loading & restacking machine for injection molded parts, candle packaging machine, custom drying conveyor, screwdriver slotting machine and stapler sub-assembly machine.