The Milwaukee 48-89-9224 Step Drill Bit 6-Piece Set includes a range of high-quality drill bits (#1, #4, #6, #7, #8, #9) suitable for various automotive and industrial applications. Manufactured by Milwaukee, known for their durable and reliable tools, this set offers a convenient option for professionals and DIY enthusiasts alike. Each piece is designed to provide precise and efficient drilling, making it a valuable addition to any tool collection.