This 3" diamond core drill bit is a powerful tool for drilling through concrete, cement, and brick. With a 1 1/4"-7 UNC thread size, it is compatible with a wide range of drilling machines. The model SDCBA125X400X76 is perfect for heavy-duty use in construction and industrial settings. The core drill bit is made by Another Amazing Product USA and is part of the Core Drills Rigs, Drills Hammers, Light Equipment Tools, Business Industrial categories. Its thread size is 1 1/4"-7 UNC, making it a reliable tool for drilling through dense materials. The model SDCBA125X400X76 comes in a convenient size of 76x400 and is an ideal choice for professionals who demand high-quality tools.