Bosch 7-Piece Bulldog Hammer Drill Bit Set is a professional-grade solution for drilling into concrete, masonry, and other hard materials. The set includes a variety of bit sizes, from 3/16" to 1/2", to handle a wide range of applications. The bits are made from high-quality alloy steel and feature an optimized brazing and hardening process for long life. The carbide tips are tougher and more durable under heavy loads, making them ideal for drilling into tough materials. The set comes with a brute tough storage case for easy access, organizing, and portability.