Hammer drill SDS-max-7, speed X, diameter: 30 mm, working length: 400 mm, total length: 520 mm, suitable for concrete and reinforced concrete, sand-lime brick, masonry, for use in hammer drills with SDS-max socket, resealable craftsman packaging, activeteq: active centring tip for active cutting in concrete, durable carbide with the finest grain for high durability and best resistance. Wear indicator: the visibility of the wear indicator gives an orientation in terms of tolerance to be able to set dowels, 4 cutters, extremely robust and aggressive solid carbide S cutting edge and angled secondary cutting edges for aggressive drilling progress, 2 and 2 spiral design: vibration-optimised spiral design for best power transmission and speed