The Alpen 18.0mm x 540mm SDS Max Hammer Drill is built for heavy-duty drilling in concrete, natural stone, and brickwork. Its durable construction guarantees reliable performance in demanding environments. Brand: Alpen Size: 18.0mm diameter, 540mm 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