Knaack Storagemaster Chests are the workhorse on any jobsite. Ideal for every trade; Mechanical, Plumbing, HVAC, Electrical, and anyother trade where secure toolequipment storage is needed. The Knaack Storagemaster Chests are caster ready and include full width shelves for organization of small to large tools and equipment. Storagemaster Flat Top Chests offer industry leading tool and equipment protection. They feature the Watchman IV lock system, heavy duty 16-gauge steel body construction and fully arc welded seams for an additional level of durability. The Storagemaster chests offer a unique folding "piano hinge" door that opens to allow for easier access to all tools and equipment. Knaack Storagemaster Chests are one of the most versatile jobsite storage solutions available and are a welcome addition to any shop or jobsite.