Ideal for installing electrical back boxes and junction boxes in deep or multi-layered walls, this 65 mm core drill has a 100 mm usable length. It can cut through combinations of tile, backer board, and blockwork in a single operation. The drill features a vacuum-brazed diamond cutting edge for durability and speed when used with an angle grinder. The M14 thread provides a direct, stable connection to the tool, while the extended barrel helps maintain accuracy and performance. This makes it a great tool for electricians working in modern construction with complex wall assemblies.