Alfa Tools SDSQ5 5pc SDS Plus Quadro Hammer Drill Bit Set

SDS 4 x 4 Quadro Contractor 5 Piece in Plastic Case, 6-1/4" Long Drills: 3/16" to 1/2", Solid Carbide Quadro Head, 4 Slot SDS Drive System. Alfa Tools SDSQ5 5pc SDS Plus Quadro Hammer Drill Bit Set