Great for home or professional craftsmen, this 5-piece Masonry Drill Bits Set features milled flutes for fast, efficient and accurate drilling - ideal for drilling through brick, concrete, stone, slate, marble, tile, plaster and more. Drill sizes include: 5/32, 3/16, 1/4, 5/16" and 3/8". Comes packaged in a vinyl bag with a header card.