The 990-F3 is one of KVAL’s most popular machines for interior door pre-hanging. It takes under 55 seconds to machine the door and jamb for three hinges plus lock and attach the hinges using the powerful Six-Shooter controls. For maximum efficiency and output the 990-F3 is typically used in-line with the Handler Door Feeder, 700-C Frame Assembler, and the 960-3 Strike Jamb Router. Doors wider than 3’ need to be machined either the ON-2 Door Feeder or ON-3 Door Feeder prior to being fed into the 990-F3. The standard 990-F3 is designed to accommodate interior 1⅜” and exterior 1¾” thick doors and jambs. Hinge size changes can be made between 3½” × 3½” and 4” × 4”, and is easily accomplished without the use of any tools, while vertical adjustment is made with top and bottom turrets that are preset to your specifications prior to shipment. Horizontal size adjustment is made with two ¼” long pins that are removed or installed as needed. Two to three minutes is all that is needed to remove the safety covers, make the hinge size change, and reinstall the safety covers at each head.