Bosch T3912SC - 1-3/8" SpeedCore Thin-Wall Core Bit

High-grade tungsten carbide offers durability and life. Ejector hole delivers easy core removal of masonry, brick and block. Works with Bosch one-piece SDS-plus® pilot bits and extensions. High-grade tungsten carbide teeth Pilot bit is integrated with mandrel Ejector hole Works with Bosch SPEEDCORE™ SDS-plus® pilot bits and extensions Designed for drilling with smaller hammers