The Hyper Tough 15-Piece Masonry Bit Set is perfect for drilling brick, block and other masonry materials. The Hyper Tough 15-Piece Masonry Bit Set features quality carbide tips for long life and includes: (3) 1/8-inch, (3) 5/32-inch, (3) 3/16-inch, (2) 1/4-inch, (2) 5/16-inch, (2) 3/8-inch. The Hyper Tough 15-Piece Masonry Bit Set bits are designed to be used in rotary and hammer drills. The included storage case keeps your bits organized and ready to use.