Teng Tools 1/2" TX Impact Socket DINEngineered for professional power tool use, these TX impact sockets deliver reliable performance on fasteners with TX holes. Built to DIN standards, they feature a retaining pin and ring design for secure attachment. Key Features: DIN standard design with retaining pin and ring for secure use Chrome molybdenum construction for durability under high torque Black phosphate finish for easy size identification Ring and pin fixing hole on the female end