With the Makita D-42874 hole saw, you drill clean and precise 68 mm holes for standard electrical back boxes and conduit entries. Featuring tough tungsten carbide tipped (TCT) teeth, it cuts smoothly through multiple materials such as wood, MDF, plasterboard, plastics, aerated concrete, and soft tiles without needing to swap accessories. This makes it an ideal solution for electricians, drywall installers, and renovators. Mount this bare hole saw onto a compatible arbor with a pilot drill to achieve fast cutting progress and long-lasting durability on every job.