The Alpen 18.0mm x 940mm SDS Max Hammer Drill is designed for high-efficiency drilling in concrete, natural stone, and brickwork. Its sturdy design ensures long-lasting performance and reliability. Brand: Alpen Size: 18.0mm diameter, 940mm length Application: Suitable for heavy-duty drilling in concrete and masonry Design: Engineered for optimal performance and efficiency Compatibility: Fits all SDS Max rotary hammers