About this item

• Designed for easy torque calibrations
• Adapters measure 2-inch 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, Made in USA