Hallowell All-Welded DuraTough Storage Cabinet is designed to withstand the most demanding industrial applications.  Classic Series cabinets are fabricated from prime-grade cold rolled sheet steel. Standard features for all Duratough cabinets: All-welded construction with a double door design. Solid doors are reinforced with an 18 gauge full-height door stiffener providing a rigid torque-free door. 3-point turn handle locking using 3/8" diameter locking rods operated by 3/16" gauge steel handle (handle painted to match cabinet).  Heavy-duty 13 gauge 7-knuckle 3 1/2" butt hinges are welded to the door and securely riveted to the frame, and solid sides are formed to be integral with the vertical door frame.  The top is formed to be integral with a horizontal bottom door frame and includes double return bends at all four sides, maximizing unit rigidity. The back is welded to the cabinet top, bottom, and sides.  Shelves are formed to provide maximum capacity and are adjustable on 3" centers.