【Size】1/2-Inch (F) drive to 1-Inch (M) drive sockets.
【Material】Made by heat black chrome molybdenum steel, provides the strength and flexibility to handle high torque impact tools. Black phosphate finish for extra durability and anti-corrosion.
【Radiused Corners Design】Radiused corners inside drive avoid stress concentrations to causing possible cracking.
【Secure Connection】Spring-loaded retaining balls latch into sockets and hold them securely in place.
【Make it Easy】 Use with ratchet and extensions to making it a perfect fit for any industrial, mechanic, or construction and DIY work.