Bosch 4-3/8 In. SDS-Plus SPEEDCORE Thin-Wall Core Bit is designed for durability and efficient performance. Crafted with high-grade tungsten carbide, this core bit offers exceptional longevity, making it a reliable choice for tough masonry jobs. The ejector hole feature ensures easy removal of cores from materials like masonry, brick, and block, enhancing your workflow. Compatible with Bosch one-piece SDS-plus pilot bits and extensions, this core bit provides versatile use for various drilling applications.Model Number: