SDS-plus drill bit with high-quality carbide drill tip, Dynamic, chisel-shaped bit head, Large-volume S-spiral geometry ensures quick drill dust removal, Good drilling output with good tool life, For use in concrete, masonry, natural stone, 4-piece in plastic storage case Ø 5, 6, 8, 10 mm, L = 160 mm, SDS-plus drill bit with high-quality carbide drill tip, dynamic, chisel-shaped drill head, large-volume S-spiral geometry ensures quick drill dust removal, good drilling performance with good tool life; for use in concrete, masonry, natural stone