SDS Max Hammer Drill Bit - 18mmProfessional 18mm SDS Max Hammer Drill Bit Power & Accuracy The Timco Professional SDS Max 18mm Hammer Bit is engineered for high performance drilling into reinforced concrete, masonry, stone, and brick. Made from premium grade steel with a hardened carbide tip, it delivers long lasting sharpness, excellent wear resistance, and superior durability. The SDS Max shank ensures a secure fit with rotary hammers, providing maximum energy transfer and rapid