The BlueSpot 8 Piece Masonry Drill Bit Set is zinc plated with carbide tips for increased durability. Ideal for fast drilling of plug, anchor or clearance holes in a variety of materials including masonry, stone, concrete and brick/block. Includes handy carrying case for quick and convenient storage. Sizes: 3, 4, 5, 6, 7, 8, 9 amp; 10mm
