First are the hole saws, which are the "saw blades" and come in various sizes and configurations of cutting teeth. The second is the arbor, also called a mandrel, which mounts the hole saw on a ...

Hole saws come in a wide range of diameters, too, so whether you’re cutting ... steel. Diamond-tipped hole saws are also available for use with ceramics, glass, and stone. The arbor connects ...