This line includes an ON-3, 990-F3, 700-c, and 960-3. The 990-F3 door pre-hanging system is one of our most popular Interior Door Pre-hanging systems. It is designed to accommodate interior doors and jambs 1-3/8” thick and exterior doors and jambs 1-3/4” thick. Hinge size changes between 3-1/2”x3-1/2” and 4”x4” are easily done without the use of any tools. The vertical adjustment is made with top and bottom turrets that are preset to customer’s specifications. The horizontal size adjustment is made with two 1/4” long pins that are either removed or installed as needed. Two to three minutes are all that are needed to remove the safety covers, make the hinge size change, and reinstall the safety covers at each head.The typical cycle time to machine the door and jamb for three hinges and lock, and attach three hinges is 40 to 55 seconds. It is a perfect fit with our Handler Door Feeder and 700-C Assembly Table.