DEWALT DW5207 7-Piece Premium Percussion Masonry Drill Bit Set
An excellent accessory for your cordless hammer drill, this DEWALT seven piece drill bit set provides function and durability for all your rugged drilling needs.  Applications include drilling nice, neat holes into masonry, concrete, rock, and artificial stone.  Crafted for the average 3/8-inch and 1/2-inch sized chuck, the bits in this set are intended to make holes for mechanical anchors.  The set includes the following pieces: 3/16-inch by 3, 1/4-inch by 4, 5/16-inch by 6, 3/8-inch by 6, 1/2-inch by 6 and two 1/4-inch by 6s.