7 pcs. Hammer drill bit set with SDS-plus shank (ø10 mm) in a plastic case, easy centering and drilling thanks to the innovative ZENTRO design, reduced friction and centric guidance in the drill hole for exact and precisely fitting holes, the core reinforcement ensures high breakage resistance and ensures that the The impact energy of the rotary hammer is transferred directly to the drill bit, the 4-spiral geometry of the drill ensures fast drilling dust removal, for all drilling work with fast drilling progress in stone, (iron-reinforced) concrete and natural stone, contents: 1x ø 5, ø 6 and ø 8x 110 mm, 1x ø 6, ø 8, ø 10 and ø 12x 160 mm