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.
- Designed for speed and safety.
- Special heat-treated alloy steel helps increase strength and durability.
- 12 point Box end allows for fine indexing, helping to improve speed and access. Fits 4, 6 and 12 point fasteners.
- Full polish finish provides corrosion resistance and easy to clean surfaces.
