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Concentric openings. Measures 2 from center of adapter opening to center of square drive for easy torque calculations. High strength thin wall design. Applies more torque to fastener. Reduces risk of fastener rounding.- Designed for easy torque calibrations.
- 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.