Proto Tools is an American industrial hand tool company. Founded as Plomb, it is presently a division of Stanley Black & Decker. The company is credited with creating the first combination wrench in 1933.
- Built to fit the Proto® 540 series as well as most other metal storage drawers
- High quality cross linked polyethylene foam helps resist chemicals and other industrial solvents
- Customize storage drawers with multiple foamed modular sets
