Bosch 1/4 in. x 4 in. SDS-plus® Bulldog™ Rotary Hammer Bit is the for anchoring and through-hole applications in concrete. Designed with optimized brazing and hardened construction, this bit longer life and more holes per bit, ensuring durability and efficiency on the job. Its centric tip s quick starts in concrete and provides optimal hole geometry for precise drilling. The Bosch-made carbide tip is built to withstand heavy loads, making it tougher and more durable than standard bits. Additionally, the improved flute design helps the bit run cooler and 15% faster d to the S4L model. For added convenience, wear mark alerts let users know when the tip wears beyond ANSI specifications, helping maintain performance and safety. Model Number: HC2040