Bosch 3-1/2 In. SDS-Plus SPEEDCORE Thin-Wall Core Bit is designed for durability and efficiency in core drilling applications. Crafted with high-grade tungsten carbide, this core bit offers exceptional longevity and strength, making it ideal for use with masonry, brick, and block materials. The innovative ejector hole feature ensures easy removal of cores, enhancing productivity on the job site. This core bit is compatible with Bosch one-piece SDS-plus pilot bits and extensions, providing versatility and convenience for various drilling needs.Model Number: