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Door Size: 18" min. width; 36" max. width; 6'-6" door height; 2-3/8" or 2-3/4" lock backset. Hinge locations: Min. 29" between centers; max. 31-1/2" between centers. Jamb Size: min. width 3-1/2"; max. width 7-1/4"; thickness 7/8". Hinge: Corner radius of 5/8" is standard and a 1/4" radius option is available (Requires router bit change). Door pre-hanging system equipped for automatic door positioning and the Six-Shooter Screw Gun; most popular model of Interior Door Pre-hanging systems; typical cycle time to machine the door and jamb for three hinges and lock, and attach three hinges is 40 to 55 seconds. Standard 990 is designed to accommodate interior, 1-3/8" thick and exterior, 1-3/4" thick doors and jambs; hinge size changes between 3-1/2" x 3-1/2" and 4" x 4" are easily done without the use of tools; vertical adjustment made with top and bottom turrets that are pre-set; horizontal size adjustment is made with two 1/4" long pins that are either removed or installed as needed. 2 - 3-minutes are needed to remove the safety covers, make the hinge size change, and reinstall the safety covers at each head. .
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