Quitting time applies to everything but a KNAACK® box: Our integrated and three-point locking systems provide the utmost in security, while saving you time and money with a one-time install.

What is the recommended padlock for my KNAACK® jobsite boxes? KNAACK® recommends Master Lock #5 or American Lock #50 due to the shackle length and that the U-Bold and Lock Mechanism are developed specifically for that lock.

PIANO BOXES. KNAACK Piano Boxes come in a variety of sizes, with a variety of options. All with the same purpose to provide on-site maximum security for tools and equipment.

KNAACK® products are available through leading retailers nationwide. To find local availability, please navigate to a specific product and click "BUY NOW." You can also select a logo below to shop online from one of our approved distributors.

KNAACK provides industry-leading jobsite security. See our complete line of cabinets, chests, field stations, piano boxes and work benches.

The KNAACK Model 4824 JOBMASTER Chest is a superior tool chest measuring 24in deep by 48in wide for convenient, accessible, versatile, and secure tool storage.

The Model 42 JOBMASTER Chest has 9 cu ft of secure, versatile storage for equipment and tools, with a welded piano hinge and POWER PASS electrical capabilities.

One of its handiest features, the JunkTrunk™ Quick Access Drawer locks independently for quick access to high-demand tools and accessories. The size is ideal for a personal box on a jobsite or added security inside a trailer.

The Model 4830 JOBMASTER Tool Chest measures 30in deep by 48in wide for versatile, secure, convenient tool box chest storage and organization on the jobsite.

The jobsite storage box is crafted from heavy-duty steel and finished with a corrosion-resistant powder coat, which keeps the piano box in top-notch condition over time. All Piano Boxes come with a KNAACK Padlock that fits perfectly in the lock box.