The Hitachi 712220 is a genuine 22mm Tungsten Carbide Tipped (TCT) core drill, designed for efficient drilling in tough materials such as brick, block, concrete, stone, and masonry. This durable core drill is specifically engineered for use with SDS-Plus rotary hammer drills that feature a rotary stop function, ensuring optimal performance and longevity. With a working length of 70mm and an overall length of 160mm, it provides excellent reach and precision for various construction and industrial applications.