The Milwaukee 48-20-3972 SDS Max 1-1/4" X 23" Hammer Drill Bit is a high-quality drill bit designed for use with SDS Max hammers. Made of steel with a silver color, this 4-inch diameter bit measures 23 inches in length and is suitable for cutting applications. It is compatible with drills and rotary tools, making it a versatile and durable addition to any workshop or tool collection. Trust in the Milwaukee brand for reliable and long-lasting power tool accessories.