Features and Benefits: Forged from the finest chrome molybdenum alloy steel – the best choice for strength and durability Radius corner design – to extend the life of fasteners Deep drive 6 point impact socket Size: 1-1/2″ Fully guaranteedNo doubt Sunex tools offer one of the most complete and toughest Impact Socket lines around. This 1″ deep drive 6 point impact socket is designed to tackle the toughest jobs with solid durability and keeps them pounding job after job. Also it features a radius corner design causing the socket to grab the sturdy wall of the fastener instead of grabbing the corners resulting in less wear on the fastener.