Proto J5122 Features
- Designed for easy torque calculations
- Adapters measure 2" from the center of the square drive to the center of the adapter opening
- Special heat-treated alloy steel helps to increase strength and durability
- Box end wall thickness is specially engineered to provide strength while still allowing ample room for access to reach difficult fasteners
- 12 point box end allows for fine indexing, helping to improve speed and access. Fits 4, 6 and 12 point fasteners.
