145-7954, Irwin, Irwin 5-Piece SDS Drill Bit Set for Masonry, 12mm Max, 5mm Min, Tungsten Carbide Tipped Bits, Brand Irwin, Drilling Application Masonry, Drill Bit Type SDS Drill Bit Irwin 5-Piece SDS Drill Bit Set for Masonry, 12mm Max, 5mm Min, Tungsten Carbide Tipped Bits