A flat box is used in conjunction with a flat box handle to efficiently apply a crowned, feathered coat of joint compound over taped joints on walls and ceilings. DEWALT flat boxes feature a premium grade aluminum housing that has been hard-coat anodized for extreme durability and easy cleaning are fitted with a flexible brass blade holder and a stainless steel blade, as well as stainless steel skids and shoes. A crown adjustment dial provides 5 settings, so the ideal amount of compound can be dispensed on the wall to ensure consistent, professional results. DEWALT flat boxes have a premium urethane pressure plate seal and beveled edges on the box housing ensure easy open and close. The pressure plate itself also opens extra wide for easy cleaning. DEWALT flat boxes are outfitted with non-marring wheels with durable bearings for ultra-smooth operation. 7” and 10” versions of the flat boxes also come standard with “outsider” wheel extensions for use when finishing outside corner beads. Optional DEWALT “Outsider” wheel extensions for finishing outside corner beads (DXTT 2-862). Comes standard with 7” and 10” DEWALT standard flat boxes. DEWALT extendable flat box handles are available in four lengths: 23” – 32” (DXTT 2-782) 30” – 42” (DXTT 2-781) 40” – 62” (DXTT 2-780) 48” – 78” (DXTT 2-759) PRODUCT FEATURES Efficiently applies an even, consistent layer of joint compound to taped flat and butt joints on walls and ceilings. Joint edges are feathered to perfection. Flexible brass blade holder and stainless steel blade allows for proper compound application and crown. Adjustable crown dial ensures the precise amount of mud. GUARANTEED TOUGH®. DEWALT automatic drywall tools are backed by a 10-year limited warranty.