Bosch 1 In. x 21 In. SDS-Max® SpeedX™ Rotary Hammer Bit is engineered to deliver exceptional performance and durability. This rotary hammer bit features carbide tips that maintain sharpness longer, allowing you to drill more holes within specification d to competitive bits. Manufactured to ANSI specification B212.14, it is compatible with Bosch SDS-max® hammers as well as other SDS-max® drive hammers and Hilti® hammers using TE-Y and TE-FY shanks. The solid carbide head combined with a robust S-cutter design provides unrivaled power, increased speed, and extended life, making it an i choice for demanding drilling applications. Model Number: 1618590001