UWS 72 in. Bright Aluminum Crossover Truck Tool Box with Low Profile (Heavy Packaging) "Air Compressors" Split point for better starting Split point for better starting and serrated body for aggressive cutting Heat treated spring steel shank with wire fishing accommodation holes in the head and shank Good flexibility in 54 inch shank Made in the USA Add a quick switch hex to adapt to a quick change chuck Compatible with 3 16 inch shank extensions Blade Guard System Patented fully foamed lid creates a rigid wall between outer aluminum layers to help prevent bending or warping Aluminum 1 piece Tub and Lid is designed to support heavy loads